Causes the human to be progressive modestly, arrogantly enable the human to retrocede!

谦虚使进步，骄傲使！

The policeman directed the crowd to move back for safety.

为了安全那个警察命往。

Her horse shied violently at a gorse bush.

金雀花丛把她的马惊得猛然。

Confronted by the angry strikers,the police had to retreat.

面对愤怒的罢工者,警察只好。

The mountain peaks recede into the distance as one leaves the shore.

离岸时, 山峰向去。

She unconsciously moved back a pace or two.

她下意识地向了一两步。

Chris took one step backwards then checked himself .

克里斯了一步，然停住了脚步。

Anna recoiled in horror as the snake approached.

那条蛇逼上前来，安娜吓得直往。

Toby took a step backwards and knocked the video camera for six.

托比了一步，将摄像机撞翻在地。

He stepped backward and fell over the cliff.

他向了一步就从悬上掉下去了。

The main reason of leading to overhigh hydrogen content was insufficient anneal after forged.

锻造火不足是导致氢含量过高的主要原因。

I stand back, excruciated by the possibility.

我向了一步，为可能发生的事情烦躁不安。

Cook forced the goalkeeper to back-pedal and push a shot over the bar.

库克迫使守门员快速，把射来的球挡出了横梁。

Elisa Maza: Get back or you'll all be street pizza.

！你们都会变成馅饼的！

Claudia tried to step back.

克劳迪亚尽力大步往。

Loss of anterior ertebral height, degree of kyphotic deformity, and percentage retropulsion were recorded at seeral phases of treatment.

在几个治疗阶段记录椎体前缘高、驼背畸形的程、步态的百分比等。

Planar strips,vertical stages,continuous backpedal and strong succession are the characteristics of the glutinite body distribution in a rift extensional basin.

断陷伸展湖盆陡坡带上的砂砾岩体具有"平面分带、垂向分期、持续、继承性强"的分布特征。

Operate guidebook:The direction key control, the or so key make a turn, up and down the key go forward countermarch.

方向键控制，左右键转弯，上下键前进。

The countermarch phenomenon of the Mingyong glacier of Meili Snow Mountain has taken place in Yunnan province.The change auspice also has taken place in Xishuangbanna district.

受全球气候变暖的影响,云南梅里雪山的明永冰川已发生现象,西双版纳也已出现一些变化的前兆。

Methods Prepare the root canal with routine, stepback, endo-ultrasound, precurve and synthesis methods, then fill the root cannal with gutta percha points, reexaminate after 6 months.

方法采用常规法、逐步法、超声法、预弯法和综合法进行根管预备并充填，6个月复查。

Causes the human to be progressive modestly, arrogantly enable the human to retrocede!

谦虚使人进，骄傲使人后退！

The policeman directed the crowd to move back for safety.

为安全那个警察命令人群往后退。

Her horse shied violently at a gorse bush.

金雀花丛把她的马惊得猛然后退。

Confronted by the angry strikers,the police had to retreat.

面对愤怒的罢工者,警察只好后退。

The mountain peaks recede into the distance as one leaves the shore.

人离岸时, 山峰向后退。

She unconsciously moved back a pace or two.

她下意识地向后退两。

Chris took one step backwards then checked himself .

克里斯后退，然后停住脚。

Anna recoiled in horror as the snake approached.

那条蛇逼上前来，安娜吓得直往后退。

Toby took a step backwards and knocked the video camera for six.

托比后退，将摄像机撞翻在地。

He stepped backward and fell over the cliff.

他向后退就从悬上掉下。

The main reason of leading to overhigh hydrogen content was insufficient anneal after forged.

造后退火不足是导致氢含量过高的主要原因。

I stand back, excruciated by the possibility.

我向后退，为可能发生的事情烦躁不安。

Cook forced the goalkeeper to back-pedal and push a shot over the bar.

库克迫使守门员快速后退，把射来的球挡出横梁。

Elisa Maza: Get back or you'll all be street pizza.

后退！你们都会变成馅饼的！

Claudia tried to step back.

克劳迪亚尽力大往后退。

Loss of anterior ertebral height, degree of kyphotic deformity, and percentage retropulsion were recorded at seeral phases of treatment.

在几个治疗阶段记录椎体前缘高度、驼背畸形的程度、后退态的百分比等。

Planar strips,vertical stages,continuous backpedal and strong succession are the characteristics of the glutinite body distribution in a rift extensional basin.

断陷伸展湖盆陡坡带上的砂砾岩体具有"平面分带、垂向分期、持续后退、继承性强"的分布特征。

Operate guidebook:The direction key control, the or so key make a turn, up and down the key go forward countermarch.

方向键控制，左右键转弯，上下键前进后退。

The countermarch phenomenon of the Mingyong glacier of Meili Snow Mountain has taken place in Yunnan province.The change auspice also has taken place in Xishuangbanna district.

受全球气候变暖的影响,云南梅里雪山的明永冰川已发生后退现象,西双版纳也已出现些变化的前兆。

Methods Prepare the root canal with routine, stepback, endo-ultrasound, precurve and synthesis methods, then fill the root cannal with gutta percha points, reexaminate after 6 months.

方法采用常规法、逐后退法、超声法、预弯法和综合法进行根管预备并充填，6个月后复查。

Causes the human to be progressive modestly, arrogantly enable the human to retrocede!

谦虚使人进步，骄傲使人！

The policeman directed the crowd to move back for safety.

了安全那个警察命令人群往。

Her horse shied violently at a gorse bush.

金雀花丛把她的马惊得猛然。

Confronted by the angry strikers,the police had to retreat.

面对愤怒的罢工者,警察只好。

The mountain peaks recede into the distance as one leaves the shore.

人离岸时, 山峰向去。

She unconsciously moved back a pace or two.

她下意识地向了一两步。

Chris took one step backwards then checked himself .

克里斯了一步，然停住了脚步。

Anna recoiled in horror as the snake approached.

那条蛇逼上前来，安娜吓得直往。

Toby took a step backwards and knocked the video camera for six.

托比了一步，将摄像机撞翻在地。

He stepped backward and fell over the cliff.

他向了一步就从悬上掉下去了。

The main reason of leading to overhigh hydrogen content was insufficient anneal after forged.

锻造火不足是导致氢含量过高的主要原因。

I stand back, excruciated by the possibility.

我向了一步，可能发生的事情烦躁不安。

Cook forced the goalkeeper to back-pedal and push a shot over the bar.

库克迫使守门员快速，把射来的球挡出了横梁。

Elisa Maza: Get back or you'll all be street pizza.

！你们都会变成馅饼的！

Claudia tried to step back.

克劳迪亚尽力大步往。

Loss of anterior ertebral height, degree of kyphotic deformity, and percentage retropulsion were recorded at seeral phases of treatment.

在几个治疗阶段记录椎体前缘高度、驼背畸形的程度、步态的百分比等。

Planar strips,vertical stages,continuous backpedal and strong succession are the characteristics of the glutinite body distribution in a rift extensional basin.

断湖盆陡坡带上的砂砾岩体具有"平面分带、垂向分期、持续、继承性强"的分布特征。

Operate guidebook:The direction key control, the or so key make a turn, up and down the key go forward countermarch.

方向键控制，左右键转弯，上下键前进。

The countermarch phenomenon of the Mingyong glacier of Meili Snow Mountain has taken place in Yunnan province.The change auspice also has taken place in Xishuangbanna district.

受全球气候变暖的影响,云南梅里雪山的明永冰川已发生现象,西双版纳也已出现一些变化的前兆。

Methods Prepare the root canal with routine, stepback, endo-ultrasound, precurve and synthesis methods, then fill the root cannal with gutta percha points, reexaminate after 6 months.

方法采用常规法、逐步法、超声法、预弯法和综合法进行根管预备并充填，6个月复查。

Causes the human to be progressive modestly, arrogantly enable the human to retrocede!

谦虚使人进步，骄傲使人！

The policeman directed the crowd to move back for safety.

了安全那个警察命令人群往。

Her horse shied violently at a gorse bush.

金雀花丛把她的马惊得猛然。

Confronted by the angry strikers,the police had to retreat.

面对愤怒的罢工者,警察只好。

The mountain peaks recede into the distance as one leaves the shore.

人离岸时, 山峰向去。

She unconsciously moved back a pace or two.

她下意识地向了一两步。

Chris took one step backwards then checked himself .

克里斯了一步，然停住了脚步。

Anna recoiled in horror as the snake approached.

那条蛇逼上前来，安娜吓得直往。

Toby took a step backwards and knocked the video camera for six.

托比了一步，将摄像机撞翻在地。

He stepped backward and fell over the cliff.

他向了一步就从悬上掉下去了。

The main reason of leading to overhigh hydrogen content was insufficient anneal after forged.

锻造火不足是导致氢含量过高的主要原因。

I stand back, excruciated by the possibility.

我向了一步，可能发生的事情烦躁不安。

Cook forced the goalkeeper to back-pedal and push a shot over the bar.

库克迫使守门员快速，把射来的球挡出了横梁。

Elisa Maza: Get back or you'll all be street pizza.

！你们都会变成馅饼的！

Claudia tried to step back.

克劳迪亚尽力大步往。

Loss of anterior ertebral height, degree of kyphotic deformity, and percentage retropulsion were recorded at seeral phases of treatment.

在几个治疗阶段记录椎体前缘高度、驼背畸形的程度、步态的百分比等。

Planar strips,vertical stages,continuous backpedal and strong succession are the characteristics of the glutinite body distribution in a rift extensional basin.

断湖盆陡坡带上的砂砾岩体具有"平面分带、垂向分期、持续、继承性强"的分布特征。

Operate guidebook:The direction key control, the or so key make a turn, up and down the key go forward countermarch.

方向键控制，左右键转弯，上下键前进。

The countermarch phenomenon of the Mingyong glacier of Meili Snow Mountain has taken place in Yunnan province.The change auspice also has taken place in Xishuangbanna district.

受全球气候变暖的影响,云南梅里雪山的明永冰川已发生现象,西双版纳也已出现一些变化的前兆。

Methods Prepare the root canal with routine, stepback, endo-ultrasound, precurve and synthesis methods, then fill the root cannal with gutta percha points, reexaminate after 6 months.

方法采用常规法、逐步法、超声法、预弯法和综合法进行根管预备并充填，6个月复查。

Causes the human to be progressive modestly, arrogantly enable the human to retrocede!

谦虚使人进步，骄傲使人后退！

The policeman directed the crowd to move back for safety.

为了安全那个警察命令人群往后退。

Her horse shied violently at a gorse bush.

金雀花丛把她的马然后退。

Confronted by the angry strikers,the police had to retreat.

面对愤怒的罢工者,警察只好后退。

The mountain peaks recede into the distance as one leaves the shore.

人离岸时, 山峰向后退去。

She unconsciously moved back a pace or two.

她下意识地向后退了一两步。

Chris took one step backwards then checked himself .

克里斯后退了一步，然后停住了脚步。

Anna recoiled in horror as the snake approached.

那条蛇逼上前来，安娜吓直往后退。

Toby took a step backwards and knocked the video camera for six.

托比后退了一步，将摄像机撞翻在地。

He stepped backward and fell over the cliff.

他向后退了一步就从悬上掉下去了。

The main reason of leading to overhigh hydrogen content was insufficient anneal after forged.

锻造后退火不足是导致氢含量过高的主要原因。

I stand back, excruciated by the possibility.

我向后退了一步，为可能发生的事情烦躁不安。

Cook forced the goalkeeper to back-pedal and push a shot over the bar.

库克迫使守门员快速后退，把射来的球挡出了横梁。

Elisa Maza: Get back or you'll all be street pizza.

后退！你们都会变成馅饼的！

Claudia tried to step back.

克劳迪亚尽力大步往后退。

Loss of anterior ertebral height, degree of kyphotic deformity, and percentage retropulsion were recorded at seeral phases of treatment.

在几个治疗阶段体前缘高度、驼背畸形的程度、后退步态的百分比等。

Planar strips,vertical stages,continuous backpedal and strong succession are the characteristics of the glutinite body distribution in a rift extensional basin.

断陷伸展湖盆陡坡带上的砂砾岩体具有"平面分带、垂向分期、持续后退、继承性强"的分布特征。

Operate guidebook:The direction key control, the or so key make a turn, up and down the key go forward countermarch.

方向键控制，左右键转弯，上下键前进后退。

The countermarch phenomenon of the Mingyong glacier of Meili Snow Mountain has taken place in Yunnan province.The change auspice also has taken place in Xishuangbanna district.

受全球气候变暖的影响,云南梅里雪山的明永冰川已发生后退现象,西双版纳也已出现一些变化的前兆。

Methods Prepare the root canal with routine, stepback, endo-ultrasound, precurve and synthesis methods, then fill the root cannal with gutta percha points, reexaminate after 6 months.

方法采用常规法、逐步后退法、超声法、预弯法和综合法进行根管预备并充填，6个月后复查。

Causes the human to be progressive modestly, arrogantly enable the human to retrocede!

谦虚使人进步，骄傲使人后！

The policeman directed the crowd to move back for safety.

为了安全那警察命令人群往后。

Her horse shied violently at a gorse bush.

金雀花丛把她的马惊得猛然后。

Confronted by the angry strikers,the police had to retreat.

愤怒的罢工者,警察只好后。

The mountain peaks recede into the distance as one leaves the shore.

人离岸时, 山峰向后去。

She unconsciously moved back a pace or two.

她下意识地向后了一两步。

Chris took one step backwards then checked himself .

克里斯后了一步，然后停住了脚步。

Anna recoiled in horror as the snake approached.

那条蛇逼上前来，安娜吓得直往后。

Toby took a step backwards and knocked the video camera for six.

托比后了一步，将摄像机撞翻在地。

He stepped backward and fell over the cliff.

他向后了一步就从悬上掉下去了。

The main reason of leading to overhigh hydrogen content was insufficient anneal after forged.

锻造后火不足是导致氢含量过高的主要原因。

I stand back, excruciated by the possibility.

我向后了一步，为可能发生的事情烦躁不安。

Cook forced the goalkeeper to back-pedal and push a shot over the bar.

库克迫使守门员快速后，把射来的球挡出了横梁。

Elisa Maza: Get back or you'll all be street pizza.

后！你们都会变成馅饼的！

Claudia tried to step back.

克劳迪亚尽力大步往后。

Loss of anterior ertebral height, degree of kyphotic deformity, and percentage retropulsion were recorded at seeral phases of treatment.

在几阶段记录椎体前缘高度、驼背畸形的程度、后步态的百分比等。

Planar strips,vertical stages,continuous backpedal and strong succession are the characteristics of the glutinite body distribution in a rift extensional basin.

断陷伸展湖盆陡坡带上的砂砾岩体具有"平分带、垂向分期、持续后、继承性强"的分布特征。

Operate guidebook:The direction key control, the or so key make a turn, up and down the key go forward countermarch.

方向键控制，左右键转弯，上下键前进后。

The countermarch phenomenon of the Mingyong glacier of Meili Snow Mountain has taken place in Yunnan province.The change auspice also has taken place in Xishuangbanna district.

受全球气候变暖的影响,云南梅里雪山的明永冰川已发生后现象,西双版纳也已出现一些变化的前兆。

Methods Prepare the root canal with routine, stepback, endo-ultrasound, precurve and synthesis methods, then fill the root cannal with gutta percha points, reexaminate after 6 months.

方法采用常规法、逐步后法、超声法、预弯法和综合法进行根管预备并充填，6月后复查。

Causes the human to be progressive modestly, arrogantly enable the human to retrocede!

谦虚使人进步，骄傲使人退！

The policeman directed the crowd to move back for safety.

为了安全那个警察命令人群往退。

Her horse shied violently at a gorse bush.

金雀花丛把她的马惊得退。

Confronted by the angry strikers,the police had to retreat.

面对愤怒的罢工者,警察只好退。

The mountain peaks recede into the distance as one leaves the shore.

人离岸时, 山峰向退去。

She unconsciously moved back a pace or two.

她下意识地向退了一两步。

Chris took one step backwards then checked himself .

克里斯退了一步，停住了脚步。

Anna recoiled in horror as the snake approached.

那条蛇逼上前来，安娜吓得直往退。

Toby took a step backwards and knocked the video camera for six.

托比退了一步，将摄像机撞翻在地。

He stepped backward and fell over the cliff.

他向退了一步就从悬上掉下去了。

The main reason of leading to overhigh hydrogen content was insufficient anneal after forged.

锻造退火不足是导致氢含量过高的主要原因。

I stand back, excruciated by the possibility.

我向退了一步，为可能发生的事情烦躁不安。

Cook forced the goalkeeper to back-pedal and push a shot over the bar.

库克迫使守门员快速退，把射来的球挡出了横梁。

Elisa Maza: Get back or you'll all be street pizza.

退！你们都会变成馅饼的！

Claudia tried to step back.

克劳迪亚尽力大步往退。

Loss of anterior ertebral height, degree of kyphotic deformity, and percentage retropulsion were recorded at seeral phases of treatment.

在几个治疗录椎体前缘高度、驼背畸形的程度、退步态的百分比等。

Planar strips,vertical stages,continuous backpedal and strong succession are the characteristics of the glutinite body distribution in a rift extensional basin.

断陷伸展湖盆陡坡带上的砂砾岩体具有"平面分带、垂向分期、持续退、继承性强"的分布特征。

Operate guidebook:The direction key control, the or so key make a turn, up and down the key go forward countermarch.

方向键控制，左右键转弯，上下键前进退。

The countermarch phenomenon of the Mingyong glacier of Meili Snow Mountain has taken place in Yunnan province.The change auspice also has taken place in Xishuangbanna district.

受全球气候变暖的影响,云南梅里雪山的明永冰川已发生退现象,西双版纳也已出现一些变化的前兆。

Methods Prepare the root canal with routine, stepback, endo-ultrasound, precurve and synthesis methods, then fill the root cannal with gutta percha points, reexaminate after 6 months.

方法采用常规法、逐步退法、超声法、预弯法和综合法进行根管预备并充填，6个月复查。

Causes the human to be progressive modestly, arrogantly enable the human to retrocede!

谦虚使人进步，骄傲使人后退！

The policeman directed the crowd to move back for safety.

为了安全那个警命令人群往后退。

Her horse shied violently at a gorse bush.

金雀花丛把她的马惊得猛然后退。

Confronted by the angry strikers,the police had to retreat.

面对愤怒的罢工者,警后退。

The mountain peaks recede into the distance as one leaves the shore.

人离岸时, 山峰向后退去。

She unconsciously moved back a pace or two.

她下意识地向后退了一两步。

Chris took one step backwards then checked himself .

克里斯后退了一步，然后停住了脚步。

Anna recoiled in horror as the snake approached.

那条蛇逼上前来，安娜吓得直往后退。

Toby took a step backwards and knocked the video camera for six.

托比后退了一步，将摄像机撞翻在地。

He stepped backward and fell over the cliff.

他向后退了一步就从悬上掉下去了。

The main reason of leading to overhigh hydrogen content was insufficient anneal after forged.

锻造后退火不足是导致氢含量过高的主要原因。

I stand back, excruciated by the possibility.

我向后退了一步，为可能发生的事情烦躁不安。

Cook forced the goalkeeper to back-pedal and push a shot over the bar.

库克迫使守门员快速后退，把射来的球挡出了横梁。

Elisa Maza: Get back or you'll all be street pizza.

后退！你们都会变成馅饼的！

Claudia tried to step back.

克劳迪大步往后退。

Loss of anterior ertebral height, degree of kyphotic deformity, and percentage retropulsion were recorded at seeral phases of treatment.

在几个治疗阶段记录椎体前缘高度、驼背畸形的程度、后退步态的百分比等。

Planar strips,vertical stages,continuous backpedal and strong succession are the characteristics of the glutinite body distribution in a rift extensional basin.

断陷伸展湖盆陡坡带上的砂砾岩体具有"平面分带、垂向分期、持续后退、继承性强"的分布特征。

Operate guidebook:The direction key control, the or so key make a turn, up and down the key go forward countermarch.

方向键控制，左右键转弯，上下键前进后退。

The countermarch phenomenon of the Mingyong glacier of Meili Snow Mountain has taken place in Yunnan province.The change auspice also has taken place in Xishuangbanna district.

受全球气候变暖的影响,云南梅里雪山的明永冰川已发生后退现象,西双版纳也已出现一些变化的前兆。

Methods Prepare the root canal with routine, stepback, endo-ultrasound, precurve and synthesis methods, then fill the root cannal with gutta percha points, reexaminate after 6 months.

方法采用常规法、逐步后退法、超声法、预弯法和综合法进行根管预备并充填，6个月后复查。

Causes the human to be progressive modestly, arrogantly enable the human to retrocede!

谦虚使进步，骄傲使！

The policeman directed the crowd to move back for safety.

为了安全那个警察命往。

Her horse shied violently at a gorse bush.

金雀花丛把她的马惊得猛然。

Confronted by the angry strikers,the police had to retreat.

面对愤怒的罢工者,警察只好。

The mountain peaks recede into the distance as one leaves the shore.

离岸时, 山峰向去。

She unconsciously moved back a pace or two.

她下意识地向了一两步。

Chris took one step backwards then checked himself .

克里斯了一步，然停住了脚步。

Anna recoiled in horror as the snake approached.

那条蛇逼上前来，安娜吓得直往。

Toby took a step backwards and knocked the video camera for six.

托比了一步，将摄像机撞翻在地。

He stepped backward and fell over the cliff.

他向了一步就从悬上掉下去了。

The main reason of leading to overhigh hydrogen content was insufficient anneal after forged.

锻造火不足是导致氢含量过高的主要原因。

I stand back, excruciated by the possibility.

我向了一步，为可能发生的事情烦躁不安。

Cook forced the goalkeeper to back-pedal and push a shot over the bar.

库克迫使守门员快速，把射来的球挡出了横梁。

Elisa Maza: Get back or you'll all be street pizza.

！你们都会变成馅饼的！

Claudia tried to step back.

克劳迪亚尽力大步往。

Loss of anterior ertebral height, degree of kyphotic deformity, and percentage retropulsion were recorded at seeral phases of treatment.

在几个治疗阶段记录椎体前缘高、驼背畸形的程、步态的百分比等。

Planar strips,vertical stages,continuous backpedal and strong succession are the characteristics of the glutinite body distribution in a rift extensional basin.

断陷伸展湖盆陡坡带上的砂砾岩体具有"平面分带、垂向分期、持续、继承性强"的分布特征。

Operate guidebook:The direction key control, the or so key make a turn, up and down the key go forward countermarch.

方向键控制，左右键转弯，上下键前进。

The countermarch phenomenon of the Mingyong glacier of Meili Snow Mountain has taken place in Yunnan province.The change auspice also has taken place in Xishuangbanna district.

受全球气候变暖的影响,云南梅里雪山的明永冰川已发生现象,西双版纳也已出现一些变化的前兆。

Methods Prepare the root canal with routine, stepback, endo-ultrasound, precurve and synthesis methods, then fill the root cannal with gutta percha points, reexaminate after 6 months.

方法采用常规法、逐步法、超声法、预弯法和综合法进行根管预备并充填，6个月复查。

Causes the human to be progressive modestly, arrogantly enable the human to retrocede!

谦虚使人进步，骄傲使人后退！

The policeman directed the crowd to move back for safety.

为了安全那个警察命令人群往后退。

Her horse shied violently at a gorse bush.

金雀花丛把她马惊得猛然后退。

Confronted by the angry strikers,the police had to retreat.

面对愤怒罢工者,警察只好后退。

The mountain peaks recede into the distance as one leaves the shore.

人, 山峰向后退去。

She unconsciously moved back a pace or two.

她下意识地向后退了一两步。

Chris took one step backwards then checked himself .

克里斯后退了一步，然后停住了脚步。

Anna recoiled in horror as the snake approached.

那条蛇逼上前来，安娜吓得直往后退。

Toby took a step backwards and knocked the video camera for six.

托比后退了一步，将摄像机撞翻在地。

He stepped backward and fell over the cliff.

他向后退了一步就从悬上掉下去了。

The main reason of leading to overhigh hydrogen content was insufficient anneal after forged.

锻造后退火不足是导致氢含量过高主要原因。

I stand back, excruciated by the possibility.

我向后退了一步，为可能发生事情烦躁不安。

Cook forced the goalkeeper to back-pedal and push a shot over the bar.

库克迫使守门员快速后退，把射来球挡出了横梁。

Elisa Maza: Get back or you'll all be street pizza.

后退！你们都会变成！

Claudia tried to step back.

克劳迪亚尽力大步往后退。

Loss of anterior ertebral height, degree of kyphotic deformity, and percentage retropulsion were recorded at seeral phases of treatment.

在几个治疗阶段记录椎体前缘高度、驼背畸形程度、后退步态百分比等。

Planar strips,vertical stages,continuous backpedal and strong succession are the characteristics of the glutinite body distribution in a rift extensional basin.

断陷伸展湖盆陡坡带上砂砾岩体具有"平面分带、垂向分期、持续后退、继承性强"分布特征。

Operate guidebook:The direction key control, the or so key make a turn, up and down the key go forward countermarch.

方向键控制，左右键转弯，上下键前进后退。

The countermarch phenomenon of the Mingyong glacier of Meili Snow Mountain has taken place in Yunnan province.The change auspice also has taken place in Xishuangbanna district.

受全球气候变暖影响,云南梅里雪山明永冰川已发生后退现象,西双版纳也已出现一些变化前兆。

Methods Prepare the root canal with routine, stepback, endo-ultrasound, precurve and synthesis methods, then fill the root cannal with gutta percha points, reexaminate after 6 months.

方法采用常规法、逐步后退法、超声法、预弯法和综合法进行根管预备并充填，6个月后复查。