The sewage pipes were choked with rubbish.

垃圾阻塞了污水管道。

The congestion in the city gets even worse during the summer.

夏天城市交通阻塞尤为严重。

Traffic was stopped by a deranged man shouting at the sky.

一名狂叫疯子阻塞了交通。

A fall of rocks and earth blocked the road.

落下岩石和泥土阻塞了道路。

Roadworks are causing bottlenecks in the city centre.

道路施工导致市中心交通阻塞。

A huge snowdrift is blocking the entrance to the driveway.

大雪堆阻塞了汽车专用道入口。

The road to the airport is clogged with traffic.

去机路交通阻塞得很厉害。

Traffic was stacked up for miles because of the accident.

由于车祸, 车辆被阻塞了好几英里。

Drifts of snow blocked the way.

大雪积堆，阻塞了交通。

The policeman hurried the crowd forward because they were blocking the scene of the accident.

那警察催促群移动, 为他们阻塞了事故现。

Objective To study the spiral CT features of pancreatogenic segmental occlusion of portal system (PSOPS).

目探讨胰源性门静脉系节段性阻塞(PSOPS)CT征象。

It is commonly caused by chronic alveolar hypoventilation or air way mucus plugging.

究其原，为肺泡慢性通气不足或气道分泌物阻塞。

Mutual Exclusion–not required for sharable resources; must hold for nonsharable resources.

一个进程请求资源而阻塞时，对已获得资源保持不放。

Attempts to restrict parking in the city centre have further aggravated the problem of traffic congestion.

在城市中心限制停车尝试使阻塞问题更加严重。

Objective To inquire into the clinical effect of dacryagogic plastic operation by KTP laser to treat dacryagogatresia.

目探讨KTP激光泪道成形术治疗泪道阻塞临床效果。

Objective to investigate the surgical method and its nursing care in cases of congenital nasolacrimal canal emphraxis.

摘要目探讨先天性鼻泪管阻塞探通手术方法和护理。

Objective:To illustrate the value of digital subtraction dacryocystography in the diagnosis of lacrimal duct obstruction.

评价数字减影泪道造影术在临床检查泪道阻塞中应用价值。

This abdominal CT scan with contrast demonstrates right hydronephrosis and hydroureter as a consequence of ureteral obstruction.

腹部增强CT显示输尿管阻塞导致右(图左侧)肾盂和输尿管积水。

Prepyloric antral webs are relatively uncommon as a cause for gastrointestinal obstruction in infants and children.

摘要在婴幼儿肠胃道阻塞原中，先天性幽门前窦蹼为一相当罕见之原。

Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.

术前造影以了解泪囊大小和阻塞部位，以选择最佳手术适应证。

The sewage pipes were choked with rubbish.

垃圾阻水管。

The congestion in the city gets even worse during the summer.

夏天城市交通阻尤为严重。

Traffic was stopped by a deranged man shouting at the sky.

一名狂叫的疯子阻交通。

A fall of rocks and earth blocked the road.

落下的岩石和泥土阻路。

Roadworks are causing bottlenecks in the city centre.

路施工导致市中心交通阻。

A huge snowdrift is blocking the entrance to the driveway.

大雪堆阻汽车专用的入口。

The road to the airport is clogged with traffic.

去机场的路交通阻得很厉害。

Traffic was stacked up for miles because of the accident.

由于车祸, 车辆被阻好几英里。

Drifts of snow blocked the way.

大雪积堆，阻交通。

The policeman hurried the crowd forward because they were blocking the scene of the accident.

那警察催促群移动, 因为他们阻事故现场。

Objective To study the spiral CT features of pancreatogenic segmental occlusion of portal system (PSOPS).

目的探讨胰源性门静脉系节段性阻(PSOPS)的CT征象。

It is commonly caused by chronic alveolar hypoventilation or air way mucus plugging.

究其原因，可能为肺泡慢性通气不足或气分泌物阻。

Mutual Exclusion–not required for sharable resources; must hold for nonsharable resources.

一个进程因请求资源而阻时，对已获得的资源保持不放。

Attempts to restrict parking in the city centre have further aggravated the problem of traffic congestion.

在城市中心限制停车的尝试使阻的问题更加严重。

Objective To inquire into the clinical effect of dacryagogic plastic operation by KTP laser to treat dacryagogatresia.

目的探讨KTP激光形术治疗阻的临床效果。

Objective to investigate the surgical method and its nursing care in cases of congenital nasolacrimal canal emphraxis.

摘要目的探讨先天性鼻管阻探通手术的方法和护理。

Objective:To illustrate the value of digital subtraction dacryocystography in the diagnosis of lacrimal duct obstruction.

评价数字减影造影术在临床检查阻中的应用价值。

This abdominal CT scan with contrast demonstrates right hydronephrosis and hydroureter as a consequence of ureteral obstruction.

腹部增强CT显示输尿管阻导致右(图左侧)肾盂和输尿管积水。

Prepyloric antral webs are relatively uncommon as a cause for gastrointestinal obstruction in infants and children.

摘要在婴幼儿肠胃阻的原因中，先天性幽门前窦蹼为一相当罕见之原因。

Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.

术前造影以解囊的大小和阻的部位，以选择最佳手术适应证。

The sewage pipes were choked with rubbish.

垃圾阻塞污水管道。

The congestion in the city gets even worse during the summer.

夏天阻塞尤为严重。

Traffic was stopped by a deranged man shouting at the sky.

一名狂叫的疯子阻塞。

A fall of rocks and earth blocked the road.

落下的岩石和泥土阻塞道路。

Roadworks are causing bottlenecks in the city centre.

道路施工导致心阻塞。

A huge snowdrift is blocking the entrance to the driveway.

大雪堆阻塞汽车专用道的入口。

The road to the airport is clogged with traffic.

去机场的路阻塞得很厉害。

Traffic was stacked up for miles because of the accident.

由于车祸, 车辆被阻塞好几英里。

Drifts of snow blocked the way.

大雪积堆，阻塞。

The policeman hurried the crowd forward because they were blocking the scene of the accident.

那警察催促群移动, 因为他们阻塞事故现场。

Objective To study the spiral CT features of pancreatogenic segmental occlusion of portal system (PSOPS).

目的探讨胰源性门静脉系节段性阻塞(PSOPS)的CT征象。

It is commonly caused by chronic alveolar hypoventilation or air way mucus plugging.

究其原因，可能为肺泡慢性气不足或气道分泌物阻塞。

Mutual Exclusion–not required for sharable resources; must hold for nonsharable resources.

一个进程因请求资源而阻塞时，对已获得的资源保持不放。

Attempts to restrict parking in the city centre have further aggravated the problem of traffic congestion.

在心限制停车的尝试使阻塞的问题更加严重。

Objective To inquire into the clinical effect of dacryagogic plastic operation by KTP laser to treat dacryagogatresia.

目的探讨KTP激光泪道成形术治疗泪道阻塞的临床效果。

Objective to investigate the surgical method and its nursing care in cases of congenital nasolacrimal canal emphraxis.

摘要目的探讨先天性鼻泪管阻塞探手术的方法和护理。

Objective:To illustrate the value of digital subtraction dacryocystography in the diagnosis of lacrimal duct obstruction.

评价数字减影泪道造影术在临床检查泪道阻塞的应用价值。

This abdominal CT scan with contrast demonstrates right hydronephrosis and hydroureter as a consequence of ureteral obstruction.

腹部增强CT显示输尿管阻塞导致右(图左侧)肾盂和输尿管积水。

Prepyloric antral webs are relatively uncommon as a cause for gastrointestinal obstruction in infants and children.

摘要在婴幼儿肠胃道阻塞的原因，先天性幽门前窦蹼为一相当罕见之原因。

Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.

术前造影以解泪囊的大小和阻塞的部位，以选择最佳手术适应证。

The sewage pipes were choked with rubbish.

垃圾了污水管道。

The congestion in the city gets even worse during the summer.

夏天城市交通尤为严重。

Traffic was stopped by a deranged man shouting at the sky.

一名狂叫的疯子了交通。

A fall of rocks and earth blocked the road.

落下的岩石和泥土了道路。

Roadworks are causing bottlenecks in the city centre.

道路施工导致市中心交通。

A huge snowdrift is blocking the entrance to the driveway.

大雪堆了汽车专用道的入口。

The road to the airport is clogged with traffic.

去机场的路交通得很。

Traffic was stacked up for miles because of the accident.

于车祸, 车辆被了好几英里。

Drifts of snow blocked the way.

大雪积堆，了交通。

The policeman hurried the crowd forward because they were blocking the scene of the accident.

那警察催促群移动, 因为他们了事故现场。

Objective To study the spiral CT features of pancreatogenic segmental occlusion of portal system (PSOPS).

目的探讨胰源门静脉系节段(PSOPS)的CT征象。

It is commonly caused by chronic alveolar hypoventilation or air way mucus plugging.

究其原因，可能为肺泡慢通气不足或气道分泌物。

Mutual Exclusion–not required for sharable resources; must hold for nonsharable resources.

一个进程因请求资源而时，对已获得的资源保持不放。

Attempts to restrict parking in the city centre have further aggravated the problem of traffic congestion.

在城市中心限制停车的尝试使的问题更加严重。

Objective To inquire into the clinical effect of dacryagogic plastic operation by KTP laser to treat dacryagogatresia.

目的探讨KTP激光泪道成形术治疗泪道的临床效果。

Objective to investigate the surgical method and its nursing care in cases of congenital nasolacrimal canal emphraxis.

摘要目的探讨先天鼻泪管探通手术的方法和护理。

Objective:To illustrate the value of digital subtraction dacryocystography in the diagnosis of lacrimal duct obstruction.

评价数字减影泪道造影术在临床检查泪道中的应用价值。

This abdominal CT scan with contrast demonstrates right hydronephrosis and hydroureter as a consequence of ureteral obstruction.

腹部增强CT显示输尿管导致右(图左侧)肾盂和输尿管积水。

Prepyloric antral webs are relatively uncommon as a cause for gastrointestinal obstruction in infants and children.

摘要在婴幼儿肠胃道的原因中，先天幽门前窦蹼为一相当罕见之原因。

Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.

术前造影以了解泪囊的大小和的部位，以选择最佳手术适应证。

The sewage pipes were choked with rubbish.

垃圾阻了污水管道。

The congestion in the city gets even worse during the summer.

夏天城市交通阻严重。

Traffic was stopped by a deranged man shouting at the sky.

一名狂叫疯子阻了交通。

A fall of rocks and earth blocked the road.

落下岩石和泥土阻了道路。

Roadworks are causing bottlenecks in the city centre.

道路施工导致市中心交通阻。

A huge snowdrift is blocking the entrance to the driveway.

大雪堆阻了汽车专用道入口。

The road to the airport is clogged with traffic.

去机场路交通阻得很厉害。

Traffic was stacked up for miles because of the accident.

由于车祸, 车辆被阻了好几英里。

Drifts of snow blocked the way.

大雪积堆，阻了交通。

The policeman hurried the crowd forward because they were blocking the scene of the accident.

那警察催促群移动, 因他们阻了事故现场。

Objective To study the spiral CT features of pancreatogenic segmental occlusion of portal system (PSOPS).

目探讨胰源性门静脉系节段性阻(PSOPS)CT征象。

It is commonly caused by chronic alveolar hypoventilation or air way mucus plugging.

究其原因，可能肺泡慢性通气不足或气道分泌物阻。

Mutual Exclusion–not required for sharable resources; must hold for nonsharable resources.

一个进程因请求资源而阻时，对已获得资源保持不放。

Attempts to restrict parking in the city centre have further aggravated the problem of traffic congestion.

在城市中心限制停车尝试使阻更加严重。

Objective To inquire into the clinical effect of dacryagogic plastic operation by KTP laser to treat dacryagogatresia.

目探讨KTP激光泪道成形术治疗泪道阻临床效果。

Objective to investigate the surgical method and its nursing care in cases of congenital nasolacrimal canal emphraxis.

摘要目探讨先天性鼻泪管阻探通手术方法和护理。

Objective:To illustrate the value of digital subtraction dacryocystography in the diagnosis of lacrimal duct obstruction.

评价数字减影泪道造影术在临床检查泪道阻中应用价值。

This abdominal CT scan with contrast demonstrates right hydronephrosis and hydroureter as a consequence of ureteral obstruction.

腹部增强CT显示输尿管阻导致右(图左侧)肾盂和输尿管积水。

Prepyloric antral webs are relatively uncommon as a cause for gastrointestinal obstruction in infants and children.

摘要在婴幼儿肠胃道阻原因中，先天性幽门前窦蹼一相当罕见之原因。

Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.

术前造影以了解泪囊大小和阻部位，以选择最佳手术适应证。

The sewage pipes were choked with rubbish.

垃圾阻塞了污水管道。

The congestion in the city gets even worse during the summer.

夏天城市交通阻塞尤为严重。

Traffic was stopped by a deranged man shouting at the sky.

一名狂叫疯子阻塞了交通。

A fall of rocks and earth blocked the road.

落下和泥土阻塞了道路。

Roadworks are causing bottlenecks in the city centre.

道路施工导致市中心交通阻塞。

A huge snowdrift is blocking the entrance to the driveway.

大雪堆阻塞了汽车专用道入口。

The road to the airport is clogged with traffic.

去机场路交通阻塞得很厉害。

Traffic was stacked up for miles because of the accident.

由于车祸, 车辆被阻塞了好几英里。

Drifts of snow blocked the way.

大雪积堆，阻塞了交通。

The policeman hurried the crowd forward because they were blocking the scene of the accident.

那警察催促群移动, 因为他们阻塞了事故现场。

Objective To study the spiral CT features of pancreatogenic segmental occlusion of portal system (PSOPS).

目探讨胰源性门静脉系节段性阻塞(PSOPS)CT征象。

It is commonly caused by chronic alveolar hypoventilation or air way mucus plugging.

究其原因，可能为肺泡慢性通气足或气道分泌物阻塞。

Mutual Exclusion–not required for sharable resources; must hold for nonsharable resources.

一个进程因请求资源而阻塞时，对已获得资源放。

Attempts to restrict parking in the city centre have further aggravated the problem of traffic congestion.

在城市中心限制停车尝试使阻塞问题更加严重。

Objective To inquire into the clinical effect of dacryagogic plastic operation by KTP laser to treat dacryagogatresia.

目探讨KTP激光泪道成形术治疗泪道阻塞临床效果。

Objective to investigate the surgical method and its nursing care in cases of congenital nasolacrimal canal emphraxis.

摘要目探讨先天性鼻泪管阻塞探通手术方法和护理。

Objective:To illustrate the value of digital subtraction dacryocystography in the diagnosis of lacrimal duct obstruction.

评价数字减影泪道造影术在临床检查泪道阻塞中应用价值。

This abdominal CT scan with contrast demonstrates right hydronephrosis and hydroureter as a consequence of ureteral obstruction.

腹部增强CT显示输尿管阻塞导致右(图左侧)肾盂和输尿管积水。

Prepyloric antral webs are relatively uncommon as a cause for gastrointestinal obstruction in infants and children.

摘要在婴幼儿肠胃道阻塞原因中，先天性幽门前窦蹼为一相当罕见之原因。

Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.

术前造影以了解泪囊大小和阻塞部位，以选择最佳手术适应证。

The sewage pipes were choked with rubbish.

垃圾阻塞了污水管道。

The congestion in the city gets even worse during the summer.

夏天城市交通阻塞尤严重。

Traffic was stopped by a deranged man shouting at the sky.

一名狂叫的疯子阻塞了交通。

A fall of rocks and earth blocked the road.

落下的岩石和泥土阻塞了道路。

Roadworks are causing bottlenecks in the city centre.

道路施工导致市中心交通阻塞。

A huge snowdrift is blocking the entrance to the driveway.

大雪堆阻塞了汽车专用道的入口。

The road to the airport is clogged with traffic.

的路交通阻塞得很厉害。

Traffic was stacked up for miles because of the accident.

由于车祸, 车辆被阻塞了好几英里。

Drifts of snow blocked the way.

大雪积堆，阻塞了交通。

The policeman hurried the crowd forward because they were blocking the scene of the accident.

那警察催促群移动, 因他们阻塞了事故现。

Objective To study the spiral CT features of pancreatogenic segmental occlusion of portal system (PSOPS).

目的探讨胰源性门静脉系节段性阻塞(PSOPS)的CT征象。

It is commonly caused by chronic alveolar hypoventilation or air way mucus plugging.

究其原因，可泡慢性通气不足或气道分泌物阻塞。

Mutual Exclusion–not required for sharable resources; must hold for nonsharable resources.

一个进程因请求资源而阻塞时，对已获得的资源保持不放。

Attempts to restrict parking in the city centre have further aggravated the problem of traffic congestion.

在城市中心限制停车的尝试使阻塞的问题更加严重。

Objective To inquire into the clinical effect of dacryagogic plastic operation by KTP laser to treat dacryagogatresia.

目的探讨KTP激光泪道成形术治疗泪道阻塞的临床效果。

Objective to investigate the surgical method and its nursing care in cases of congenital nasolacrimal canal emphraxis.

摘要目的探讨先天性鼻泪管阻塞探通手术的方法和护理。

Objective:To illustrate the value of digital subtraction dacryocystography in the diagnosis of lacrimal duct obstruction.

评价数字减影泪道造影术在临床检查泪道阻塞中的应用价值。

This abdominal CT scan with contrast demonstrates right hydronephrosis and hydroureter as a consequence of ureteral obstruction.

腹部增强CT显示输尿管阻塞导致右(图左侧)肾盂和输尿管积水。

Prepyloric antral webs are relatively uncommon as a cause for gastrointestinal obstruction in infants and children.

摘要在婴幼儿肠胃道阻塞的原因中，先天性幽门前窦蹼一相当罕见之原因。

Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.

术前造影以了解泪囊的大小和阻塞的部位，以选择最佳手术适应证。

The sewage pipes were choked with rubbish.

垃圾了污水管道。

The congestion in the city gets even worse during the summer.

夏天城市交通为严重。

Traffic was stopped by a deranged man shouting at the sky.

一名狂叫的疯子了交通。

A fall of rocks and earth blocked the road.

落下的岩石和泥土了道路。

Roadworks are causing bottlenecks in the city centre.

道路施工导致市中心交通。

A huge snowdrift is blocking the entrance to the driveway.

大雪堆了汽车专用道的入口。

The road to the airport is clogged with traffic.

去机场的路交通得很厉害。

Traffic was stacked up for miles because of the accident.

由于车祸, 车辆被了好几英里。

Drifts of snow blocked the way.

大雪积堆，了交通。

The policeman hurried the crowd forward because they were blocking the scene of the accident.

那警察催促群移动, 因为他们了事故现场。

Objective To study the spiral CT features of pancreatogenic segmental occlusion of portal system (PSOPS).

目的探讨胰源性门静脉系节段性(PSOPS)的CT征象。

It is commonly caused by chronic alveolar hypoventilation or air way mucus plugging.

究其原因，可能为肺泡慢性通气不足或气道分泌物。

Mutual Exclusion–not required for sharable resources; must hold for nonsharable resources.

一个进程因请求资源而时，对已获得的资源保持不放。

Attempts to restrict parking in the city centre have further aggravated the problem of traffic congestion.

在城市中心限制停车的尝试使的加严重。

Objective To inquire into the clinical effect of dacryagogic plastic operation by KTP laser to treat dacryagogatresia.

目的探讨KTP激光泪道成形术治疗泪道的临床效果。

Objective to investigate the surgical method and its nursing care in cases of congenital nasolacrimal canal emphraxis.

摘要目的探讨先天性鼻泪管探通手术的方法和护理。

Objective:To illustrate the value of digital subtraction dacryocystography in the diagnosis of lacrimal duct obstruction.

评价数字减影泪道造影术在临床检查泪道中的应用价值。

This abdominal CT scan with contrast demonstrates right hydronephrosis and hydroureter as a consequence of ureteral obstruction.

腹部增强CT显示输尿管导致右(图左侧)肾盂和输尿管积水。

Prepyloric antral webs are relatively uncommon as a cause for gastrointestinal obstruction in infants and children.

摘要在婴幼儿肠胃道的原因中，先天性幽门前窦蹼为一相当罕见之原因。

Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.

术前造影以了解泪囊的大小和的部位，以选择最佳手术适应证。

The sewage pipes were choked with rubbish.

垃圾阻塞了污水管道。

The congestion in the city gets even worse during the summer.

夏天城市交通阻塞尤为严重。

Traffic was stopped by a deranged man shouting at the sky.

一名狂叫疯子阻塞了交通。

A fall of rocks and earth blocked the road.

落石和泥土阻塞了道路。

Roadworks are causing bottlenecks in the city centre.

道路施工导致市中心交通阻塞。

A huge snowdrift is blocking the entrance to the driveway.

大雪堆阻塞了汽车专用道入口。

The road to the airport is clogged with traffic.

去机场路交通阻塞得很厉害。

Traffic was stacked up for miles because of the accident.

由于车祸, 车辆被阻塞了好几英里。

Drifts of snow blocked the way.

大雪积堆，阻塞了交通。

The policeman hurried the crowd forward because they were blocking the scene of the accident.

那警察催促群移动, 因为他们阻塞了事故现场。

Objective To study the spiral CT features of pancreatogenic segmental occlusion of portal system (PSOPS).

目探讨胰源性门静脉系节段性阻塞(PSOPS)CT征象。

It is commonly caused by chronic alveolar hypoventilation or air way mucus plugging.

究其原因，可能为肺泡慢性通气足或气道分泌物阻塞。

Mutual Exclusion–not required for sharable resources; must hold for nonsharable resources.

一个进程因请求资源而阻塞时，对已获得资源保。

Attempts to restrict parking in the city centre have further aggravated the problem of traffic congestion.

在城市中心限制停车尝试使阻塞问题更加严重。

Objective To inquire into the clinical effect of dacryagogic plastic operation by KTP laser to treat dacryagogatresia.

目探讨KTP激光泪道成形术治疗泪道阻塞临床效果。

Objective to investigate the surgical method and its nursing care in cases of congenital nasolacrimal canal emphraxis.

摘要目探讨先天性鼻泪管阻塞探通手术方法和护理。

Objective:To illustrate the value of digital subtraction dacryocystography in the diagnosis of lacrimal duct obstruction.

评价数字减影泪道造影术在临床检查泪道阻塞中应用价值。

This abdominal CT scan with contrast demonstrates right hydronephrosis and hydroureter as a consequence of ureteral obstruction.

腹部增强CT显示输尿管阻塞导致右(图左侧)肾盂和输尿管积水。

Prepyloric antral webs are relatively uncommon as a cause for gastrointestinal obstruction in infants and children.

摘要在婴幼儿肠胃道阻塞原因中，先天性幽门前窦蹼为一相当罕见之原因。

Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.

术前造影以了解泪囊大小和阻塞部位，以选择最佳手术适应证。

The sewage pipes were choked with rubbish.

垃圾了污水管道。

The congestion in the city gets even worse during the summer.

夏天城市交通为严重。

Traffic was stopped by a deranged man shouting at the sky.

一名狂叫的疯子了交通。

A fall of rocks and earth blocked the road.

落下的岩石和泥土了道路。

Roadworks are causing bottlenecks in the city centre.

道路施工导致市中心交通。

A huge snowdrift is blocking the entrance to the driveway.

大雪堆了汽车专用道的入口。

The road to the airport is clogged with traffic.

去机场的路交通得很厉害。

Traffic was stacked up for miles because of the accident.

由于车祸, 车辆被了好几英里。

Drifts of snow blocked the way.

大雪积堆，了交通。

The policeman hurried the crowd forward because they were blocking the scene of the accident.

那警察催促群移动, 因为他们了事故现场。

Objective To study the spiral CT features of pancreatogenic segmental occlusion of portal system (PSOPS).

目的探讨胰源性门静脉系节段性(PSOPS)的CT征象。

It is commonly caused by chronic alveolar hypoventilation or air way mucus plugging.

究其原因，可能为肺泡慢性通气不足或气道分泌物。

Mutual Exclusion–not required for sharable resources; must hold for nonsharable resources.

一个进程因请求资源而时，对已获得的资源保持不放。

Attempts to restrict parking in the city centre have further aggravated the problem of traffic congestion.

在城市中心限制停车的尝试使的加严重。

Objective To inquire into the clinical effect of dacryagogic plastic operation by KTP laser to treat dacryagogatresia.

目的探讨KTP激光泪道成形术治疗泪道的临床效果。

Objective to investigate the surgical method and its nursing care in cases of congenital nasolacrimal canal emphraxis.

摘要目的探讨先天性鼻泪管探通手术的方法和护理。

Objective:To illustrate the value of digital subtraction dacryocystography in the diagnosis of lacrimal duct obstruction.

评价数字减影泪道造影术在临床检查泪道中的应用价值。

This abdominal CT scan with contrast demonstrates right hydronephrosis and hydroureter as a consequence of ureteral obstruction.

腹部增强CT显示输尿管导致右(图左侧)肾盂和输尿管积水。

Prepyloric antral webs are relatively uncommon as a cause for gastrointestinal obstruction in infants and children.

摘要在婴幼儿肠胃道的原因中，先天性幽门前窦蹼为一相当罕见之原因。

Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.

术前造影以了解泪囊的大小和的部位，以选择最佳手术适应证。