There's a crack on the underneath of the bowl.

碗底有一道。

Chaoyanggou Oilfield has low porosity, low perinea and serious heterogeneity, with natural and induced fractures.

朝阳沟油田储层低孔、低渗,非均质性严重,存在天然人工。

He had seen the rip in the book.

他看到了书里的。

He edged the tool into the crevice.

他把刀具插进里。

There's a sinister-looking crack in the roof.

屋顶上有一条危险的。

A great gap yawned between the rocks.

在岩石间有个大。

He avoided stepping on the crack in the sidewalk.

他避免踩到人行道的上。

The crack development may be intercrystalline or transcrystalline.

可能沿晶界发展或跨晶界发展。

Formation and development of ground fissure are controlled by neotectonics.

地的形成发展受新构造运动控制。

There's a crack in this cup.

这只杯子有一条。

In caner to consider the characteristics of crack in transverse-force-transfer, the displacement-boundary-unidimensional-search method is presented.

析中为考虑传递横向力的特性，提出位移边界一维搜索法。

Burn off the old paint,fill any cracks in the woodwork,and rub down well with sandpaper.

将这件木器原来的漆烧掉,填补好上面的,再用砂纸磨光。

If you paint over the cracks in the woodwork, they won't show so badly.

你要是把木器上的这些油上漆, 它们就不会那么难看了。

The clouds rifted.

云层有了。

Based on post-refracturing production data and water cut,considering that only primary fracture exists,its efficiency is coupled by adjusting parame...

在考虑重复压初用下,对重复压井进行了产能评价,验证了重复压井中初的有效性。

The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.

螳螂的耳朵只有一条，对于蝙蝠发出的超声波非常敏感。

Lai Shenghua,Liu Wenbi,Li Defa,et al.Characters of pelite-fracture reservoir and factors controlling fracture development.Minerals and Rocks,1998,18(2):47-51.

［4］赖生华,刘文碧,李德发,等.泥质岩隙油藏特征及控制发育的因素.矿物岩石,1998,18(2):47-51.

The failure process of fiber concrete is: elastic stage, crack stage, crack development stage and fracturation stage.

相应的纤维混凝土断过程包括：弹性阶段、开阶段、发展阶段、断阶段。

ACD (Active Camming Device) - Protection device that secures in rock cracks or pockets by means of spring-loaded cams. See SLCD.

使用弹簧凸轮装置在岩石或者岩洞做确保的保护器材。

According to the properties of lost circulation in the creviced formation, this paper presented a mathematical model of the lost circulation law.

本文根据地下的漏失特性,建立了地下漏失规律的数学模型,并导出了各种流体在中的流动规律。

There's a crack on the underneath of the bowl.

碗底有缝。

Chaoyanggou Oilfield has low porosity, low perinea and serious heterogeneity, with natural and induced fractures.

朝阳沟油田储层低孔、低渗,非均质性严重,存在天然缝和人工缝。

He had seen the rip in the book.

他看到了书里的缝。

He edged the tool into the crevice.

他把刀具插进缝里。

There's a sinister-looking crack in the roof.

屋顶上有条危险的缝。

A great gap yawned between the rocks.

在岩石间有个大缝。

He avoided stepping on the crack in the sidewalk.

他避免踩到人行的缝上。

The crack development may be intercrystalline or transcrystalline.

缝可能沿晶界发展或跨晶界发展。

Formation and development of ground fissure are controlled by neotectonics.

地缝的形成和发展受新构造运动控制。

There's a crack in this cup.

这只杯子有条缝。

In caner to consider the characteristics of crack in transverse-force-transfer, the displacement-boundary-unidimensional-search method is presented.

析为考虑缝传递横向力的特性，提出位移边界维搜索法。

Burn off the old paint,fill any cracks in the woodwork,and rub down well with sandpaper.

将这件木器原来的漆烧掉,填补好上面的缝,再用砂纸磨光。

If you paint over the cracks in the woodwork, they won't show so badly.

你要是把木器上的这些缝油上漆, 它们就不会那么难看了。

The clouds rifted.

云层有了缝。

Based on post-refracturing production data and water cut,considering that only primary fracture exists,its efficiency is coupled by adjusting parame...

在考虑重复压缝和缝共同作用下,对重复压井进行了产能评价,验证了重复压井缝的有效性。

The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.

螳螂的耳朵只有条缝，对于蝙蝠发出的超声波非常敏感。

Lai Shenghua,Liu Wenbi,Li Defa,et al.Characters of pelite-fracture reservoir and factors controlling fracture development.Minerals and Rocks,1998,18(2):47-51.

［4］赖生华,刘文碧,李德发,等.泥质岩隙缝油藏特征及控制缝发育的因素.矿物岩石,1998,18(2):47-51.

The failure process of fiber concrete is: elastic stage, crack stage, crack development stage and fracturation stage.

相应的纤维混凝土断过程包括：弹性阶段、开阶段、缝发展阶段、断阶段。

ACD (Active Camming Device) - Protection device that secures in rock cracks or pockets by means of spring-loaded cams. See SLCD.

使用弹簧凸轮装置在岩石缝或者岩洞做确保的保护器材。

According to the properties of lost circulation in the creviced formation, this paper presented a mathematical model of the lost circulation law.

本文根据地下缝的漏失特性,建立了地下缝漏失规律的数学模型,并导出了各种流体在缝的流动规律。

There's a crack on the underneath of the bowl.

碗底有一道。

Chaoyanggou Oilfield has low porosity, low perinea and serious heterogeneity, with natural and induced fractures.

朝阳沟油田储层低孔、低渗,非均质性严重,存在天然和。

He had seen the rip in the book.

他看到了书里的。

He edged the tool into the crevice.

他把刀具插进里。

There's a sinister-looking crack in the roof.

屋顶上有一条危险的。

A great gap yawned between the rocks.

在岩石间有个大。

He avoided stepping on the crack in the sidewalk.

他避免踩到行道的上。

The crack development may be intercrystalline or transcrystalline.

可能沿晶界发展或跨晶界发展。

Formation and development of ground fissure are controlled by neotectonics.

地的形成和发展受新构造运动控制。

There's a crack in this cup.

这只杯子有一条。

In caner to consider the characteristics of crack in transverse-force-transfer, the displacement-boundary-unidimensional-search method is presented.

析中为考虑传递横向力的特性，提出位移边界一维搜索法。

Burn off the old paint,fill any cracks in the woodwork,and rub down well with sandpaper.

将这件木器原来的漆烧掉,填补好上面的,再用砂纸磨光。

If you paint over the cracks in the woodwork, they won't show so badly.

你要是把木器上的这些油上漆, 它们就不会那么难看了。

The clouds rifted.

云层有了。

Based on post-refracturing production data and water cut,considering that only primary fracture exists,its efficiency is coupled by adjusting parame...

在考虑重复压和共同作用下,对重复压井进行了产能评价,验证了重复压井中的有效性。

The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.

螳螂的耳朵只有一条，对于蝙蝠发出的超声波非常敏感。

Lai Shenghua,Liu Wenbi,Li Defa,et al.Characters of pelite-fracture reservoir and factors controlling fracture development.Minerals and Rocks,1998,18(2):47-51.

［4］赖生华,刘文碧,李德发,等.泥质岩隙油藏特征及控制发育的因素.矿物岩石,1998,18(2):47-51.

The failure process of fiber concrete is: elastic stage, crack stage, crack development stage and fracturation stage.

相应的纤维混凝土断过程包括：弹性阶段、开阶段、发展阶段、断阶段。

ACD (Active Camming Device) - Protection device that secures in rock cracks or pockets by means of spring-loaded cams. See SLCD.

使用弹簧凸轮装置在岩石或者岩洞做确保的保护器材。

According to the properties of lost circulation in the creviced formation, this paper presented a mathematical model of the lost circulation law.

本文根据地下的漏失特性,建立了地下漏失规律的数学模型,并导出了各种流体在中的流动规律。

There's a crack on the underneath of the bowl.

碗底有一道裂缝。

Chaoyanggou Oilfield has low porosity, low perinea and serious heterogeneity, with natural and induced fractures.

朝阳沟油田储层低孔、低渗,非均质性严重,存在天然裂缝和人工裂缝。

He had seen the rip in the book.

他看到了书里的裂缝。

He edged the tool into the crevice.

他把刀具插进裂缝里。

There's a sinister-looking crack in the roof.

屋顶上有一条危险的裂缝。

A great gap yawned between the rocks.

在岩石间有个大裂缝。

He avoided stepping on the crack in the sidewalk.

他到人行道的裂缝上。

The crack development may be intercrystalline or transcrystalline.

裂缝可能沿晶界发展或跨晶界发展。

Formation and development of ground fissure are controlled by neotectonics.

地裂缝的形成和发展受新构造运动控制。

There's a crack in this cup.

这只杯子有一条裂缝。

In caner to consider the characteristics of crack in transverse-force-transfer, the displacement-boundary-unidimensional-search method is presented.

析中为考虑裂缝传递横向力的特性，提出位移边界一维搜索法。

Burn off the old paint,fill any cracks in the woodwork,and rub down well with sandpaper.

将这件木器原来的漆烧掉,填补好上面的裂缝,再用砂纸。

If you paint over the cracks in the woodwork, they won't show so badly.

要是把木器上的这些裂缝油上漆, 它们就不会那么难看了。

The clouds rifted.

云层有了裂缝。

Based on post-refracturing production data and water cut,considering that only primary fracture exists,its efficiency is coupled by adjusting parame...

在考虑重复压裂裂缝和初裂缝共同作用下,对重复压裂井进行了产能评价,验证了重复压裂井中初裂缝的有效性。

The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.

螳螂的耳朵只有一条裂缝，对于蝙蝠发出的超声波非常敏感。

Lai Shenghua,Liu Wenbi,Li Defa,et al.Characters of pelite-fracture reservoir and factors controlling fracture development.Minerals and Rocks,1998,18(2):47-51.

［4］赖生华,刘文碧,李德发,等.泥质岩裂隙缝油藏特征及控制裂缝发育的因素.矿物岩石,1998,18(2):47-51.

The failure process of fiber concrete is: elastic stage, crack stage, crack development stage and fracturation stage.

相应的纤维混凝土断裂过程包括：弹性阶段、开裂阶段、裂缝发展阶段、断裂阶段。

ACD (Active Camming Device) - Protection device that secures in rock cracks or pockets by means of spring-loaded cams. See SLCD.

使用弹簧凸轮装置在岩石裂缝或者岩洞做确保的保护器材。

According to the properties of lost circulation in the creviced formation, this paper presented a mathematical model of the lost circulation law.

本文根据地下裂缝的漏失特性,建立了地下裂缝漏失规律的数学模型,并导出了各种流体在裂缝中的流动规律。

There's a crack on the underneath of the bowl.

碗底有一道。

Chaoyanggou Oilfield has low porosity, low perinea and serious heterogeneity, with natural and induced fractures.

朝阳沟油田储层低孔、低渗,非均质性严重,存在天和人工。

He had seen the rip in the book.

他看到了书里的。

He edged the tool into the crevice.

他把刀具插进里。

There's a sinister-looking crack in the roof.

屋顶上有一条危险的。

A great gap yawned between the rocks.

在岩石间有个大。

He avoided stepping on the crack in the sidewalk.

他避免踩到人行道的上。

The crack development may be intercrystalline or transcrystalline.

可能沿晶界发展或跨晶界发展。

Formation and development of ground fissure are controlled by neotectonics.

地的形成和发展受新构造运动控制。

There's a crack in this cup.

这只杯子有一条。

In caner to consider the characteristics of crack in transverse-force-transfer, the displacement-boundary-unidimensional-search method is presented.

析中为考虑传递横向力的特性，提出位移边界一维搜索法。

Burn off the old paint,fill any cracks in the woodwork,and rub down well with sandpaper.

将这件木器原来的漆烧掉,填补好上面的,再砂纸磨光。

If you paint over the cracks in the woodwork, they won't show so badly.

你要是把木器上的这些油上漆, 它们就不会那么难看了。

The clouds rifted.

云层有了。

Based on post-refracturing production data and water cut,considering that only primary fracture exists,its efficiency is coupled by adjusting parame...

在考虑重复压和初共下,对重复压井进行了产能评价,验证了重复压井中初的有效性。

The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.

螳螂的耳朵只有一条，对于蝙蝠发出的超声波非常敏感。

Lai Shenghua,Liu Wenbi,Li Defa,et al.Characters of pelite-fracture reservoir and factors controlling fracture development.Minerals and Rocks,1998,18(2):47-51.

［4］赖生华,刘文碧,李德发,等.泥质岩隙油藏特征及控制发育的因素.矿物岩石,1998,18(2):47-51.

The failure process of fiber concrete is: elastic stage, crack stage, crack development stage and fracturation stage.

相应的纤维混凝土断过程包括：弹性阶段、开阶段、发展阶段、断阶段。

ACD (Active Camming Device) - Protection device that secures in rock cracks or pockets by means of spring-loaded cams. See SLCD.

使弹簧凸轮装置在岩石或者岩洞做确保的保护器材。

According to the properties of lost circulation in the creviced formation, this paper presented a mathematical model of the lost circulation law.

本文根据地下的漏失特性,建立了地下漏失规律的数学模型,并导出了各种流体在中的流动规律。

There's a crack on the underneath of the bowl.

碗底有一道裂缝。

Chaoyanggou Oilfield has low porosity, low perinea and serious heterogeneity, with natural and induced fractures.

朝阳沟油田储层、,非均质性严重,存在天然裂缝和人工裂缝。

He had seen the rip in the book.

他看到书里的裂缝。

He edged the tool into the crevice.

他把刀具插进裂缝里。

There's a sinister-looking crack in the roof.

屋顶上有一条危险的裂缝。

A great gap yawned between the rocks.

在岩石间有个大裂缝。

He avoided stepping on the crack in the sidewalk.

他避免踩到人行道的裂缝上。

The crack development may be intercrystalline or transcrystalline.

裂缝可沿晶界发展或跨晶界发展。

Formation and development of ground fissure are controlled by neotectonics.

地裂缝的形成和发展受新构造运动控制。

There's a crack in this cup.

这只杯子有一条裂缝。

In caner to consider the characteristics of crack in transverse-force-transfer, the displacement-boundary-unidimensional-search method is presented.

析中为考虑裂缝传递横向力的特性，提出位移边界一维搜索法。

Burn off the old paint,fill any cracks in the woodwork,and rub down well with sandpaper.

将这件木器原来的漆烧掉,填补好上面的裂缝,再用砂纸磨光。

If you paint over the cracks in the woodwork, they won't show so badly.

你要是把木器上的这些裂缝油上漆, 它们就不会那么难看。

The clouds rifted.

云层有裂缝。

Based on post-refracturing production data and water cut,considering that only primary fracture exists,its efficiency is coupled by adjusting parame...

在考虑重复压裂裂缝和初裂缝共同作用下,对重复压裂井进行评价,验证重复压裂井中初裂缝的有效性。

The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.

螳螂的耳朵只有一条裂缝，对于蝙蝠发出的超声波非常敏感。

Lai Shenghua,Liu Wenbi,Li Defa,et al.Characters of pelite-fracture reservoir and factors controlling fracture development.Minerals and Rocks,1998,18(2):47-51.

［4］赖生华,刘文碧,李德发,等.泥质岩裂隙缝油藏特征及控制裂缝发育的因素.矿物岩石,1998,18(2):47-51.

The failure process of fiber concrete is: elastic stage, crack stage, crack development stage and fracturation stage.

相应的纤维混凝土断裂过程包括：弹性阶段、开裂阶段、裂缝发展阶段、断裂阶段。

ACD (Active Camming Device) - Protection device that secures in rock cracks or pockets by means of spring-loaded cams. See SLCD.

使用弹簧凸轮装置在岩石裂缝或者岩洞做确保的保护器材。

According to the properties of lost circulation in the creviced formation, this paper presented a mathematical model of the lost circulation law.

本文根据地下裂缝的漏失特性,建立地下裂缝漏失规律的数学模型,并导出各种流体在裂缝中的流动规律。

There's a crack on the underneath of the bowl.

碗底有一道裂缝。

Chaoyanggou Oilfield has low porosity, low perinea and serious heterogeneity, with natural and induced fractures.

朝阳沟油田储层低孔、低渗,非均质性严重,存在天然裂缝和人工裂缝。

He had seen the rip in the book.

他看到了书里裂缝。

He edged the tool into the crevice.

他把刀具插进裂缝里。

There's a sinister-looking crack in the roof.

屋顶有一条裂缝。

A great gap yawned between the rocks.

在岩石间有个大裂缝。

He avoided stepping on the crack in the sidewalk.

他避免踩到人行道裂缝。

The crack development may be intercrystalline or transcrystalline.

裂缝可能沿晶界发展或跨晶界发展。

Formation and development of ground fissure are controlled by neotectonics.

地裂缝形成和发展受新构造运动控制。

There's a crack in this cup.

这只杯子有一条裂缝。

In caner to consider the characteristics of crack in transverse-force-transfer, the displacement-boundary-unidimensional-search method is presented.

析中为考虑裂缝传递横向力特性，提出位移边界一维搜索法。

Burn off the old paint,fill any cracks in the woodwork,and rub down well with sandpaper.

将这件木器原来烧掉,填补好面裂缝,再用砂纸磨光。

If you paint over the cracks in the woodwork, they won't show so badly.

你要是把木器这些裂缝油, 们就不会那么难看了。

The clouds rifted.

云层有了裂缝。

Based on post-refracturing production data and water cut,considering that only primary fracture exists,its efficiency is coupled by adjusting parame...

在考虑重复压裂裂缝和初裂缝共同作用下,对重复压裂井进行了产能评价,验证了重复压裂井中初裂缝有效性。

The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.

螳螂耳朵只有一条裂缝，对于蝙蝠发出超声波非常敏感。

Lai Shenghua,Liu Wenbi,Li Defa,et al.Characters of pelite-fracture reservoir and factors controlling fracture development.Minerals and Rocks,1998,18(2):47-51.

［4］赖生华,刘文碧,李德发,等.泥质岩裂隙缝油藏特征及控制裂缝发育因素.矿物岩石,1998,18(2):47-51.

The failure process of fiber concrete is: elastic stage, crack stage, crack development stage and fracturation stage.

相应纤维混凝土断裂过程包括：弹性阶段、开裂阶段、裂缝发展阶段、断裂阶段。

ACD (Active Camming Device) - Protection device that secures in rock cracks or pockets by means of spring-loaded cams. See SLCD.

使用弹簧凸轮装置在岩石裂缝或者岩洞做确保保护器材。

According to the properties of lost circulation in the creviced formation, this paper presented a mathematical model of the lost circulation law.

本文根据地下裂缝漏失特性,建立了地下裂缝漏失规律数学模型,并导出了各种流体在裂缝中流动规律。

There's a crack on the underneath of the bowl.

碗底有一道裂缝。

Chaoyanggou Oilfield has low porosity, low perinea and serious heterogeneity, with natural and induced fractures.

朝阳沟油田储层低孔、低渗,非均质性严重,存在天然裂缝和工裂缝。

He had seen the rip in the book.

他看了书里的裂缝。

He edged the tool into the crevice.

他把刀具插进裂缝里。

There's a sinister-looking crack in the roof.

屋顶上有一条危险的裂缝。

A great gap yawned between the rocks.

在岩石间有个大裂缝。

He avoided stepping on the crack in the sidewalk.

他避免行道的裂缝上。

The crack development may be intercrystalline or transcrystalline.

裂缝可能沿晶界发展或跨晶界发展。

Formation and development of ground fissure are controlled by neotectonics.

地裂缝的形成和发展受新构造运动控制。

There's a crack in this cup.

这只杯子有一条裂缝。

In caner to consider the characteristics of crack in transverse-force-transfer, the displacement-boundary-unidimensional-search method is presented.

析中为考虑裂缝传递横向力的特性，提出位移边界一维搜索法。

Burn off the old paint,fill any cracks in the woodwork,and rub down well with sandpaper.

将这件木器原来的漆烧掉,填补好上面的裂缝,再用光。

If you paint over the cracks in the woodwork, they won't show so badly.

你要是把木器上的这些裂缝油上漆, 它们就不会那么难看了。

The clouds rifted.

云层有了裂缝。

Based on post-refracturing production data and water cut,considering that only primary fracture exists,its efficiency is coupled by adjusting parame...

在考虑重复压裂裂缝和初裂缝共同作用下,对重复压裂井进行了产能评价,验证了重复压裂井中初裂缝的有效性。

The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.

螳螂的耳朵只有一条裂缝，对于蝙蝠发出的超声波非常敏感。

Lai Shenghua,Liu Wenbi,Li Defa,et al.Characters of pelite-fracture reservoir and factors controlling fracture development.Minerals and Rocks,1998,18(2):47-51.

［4］赖生华,刘文碧,李德发,等.泥质岩裂隙缝油藏特征及控制裂缝发育的因素.矿物岩石,1998,18(2):47-51.

The failure process of fiber concrete is: elastic stage, crack stage, crack development stage and fracturation stage.

相应的纤维混凝土断裂过程包括：弹性阶段、开裂阶段、裂缝发展阶段、断裂阶段。

ACD (Active Camming Device) - Protection device that secures in rock cracks or pockets by means of spring-loaded cams. See SLCD.

使用弹簧凸轮装置在岩石裂缝或者岩洞做确保的保护器材。

According to the properties of lost circulation in the creviced formation, this paper presented a mathematical model of the lost circulation law.

本文根据地下裂缝的漏失特性,建立了地下裂缝漏失规律的数学模型,并导出了各种流体在裂缝中的流动规律。

There's a crack on the underneath of the bowl.

碗底有一道。

Chaoyanggou Oilfield has low porosity, low perinea and serious heterogeneity, with natural and induced fractures.

朝阳沟油田储层低孔、低渗,非均质性严重,存天然和人工。

He had seen the rip in the book.

看到了书里的。

He edged the tool into the crevice.

把刀具插进里。

There's a sinister-looking crack in the roof.

屋顶上有一条危险的。

A great gap yawned between the rocks.

岩石间有个大。

He avoided stepping on the crack in the sidewalk.

避免踩到人行道的上。

The crack development may be intercrystalline or transcrystalline.

可能沿晶界发展或跨晶界发展。

Formation and development of ground fissure are controlled by neotectonics.

地的形成和发展受新构造运动控制。

There's a crack in this cup.

这只杯子有一条。

In caner to consider the characteristics of crack in transverse-force-transfer, the displacement-boundary-unidimensional-search method is presented.

析中为虑传递横向力的特性，提出位移边界一维搜索法。

Burn off the old paint,fill any cracks in the woodwork,and rub down well with sandpaper.

将这件木器原来的漆烧掉,填补好上面的,再用砂纸磨光。

If you paint over the cracks in the woodwork, they won't show so badly.

你要是把木器上的这些油上漆, 它们就不会那么难看了。

The clouds rifted.

云层有了。

Based on post-refracturing production data and water cut,considering that only primary fracture exists,its efficiency is coupled by adjusting parame...

虑重复压和初共同作用下,对重复压井进行了产能评价,验证了重复压井中初的有效性。

The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.

螳螂的耳朵只有一条，对于蝙蝠发出的超声波非常敏感。

Lai Shenghua,Liu Wenbi,Li Defa,et al.Characters of pelite-fracture reservoir and factors controlling fracture development.Minerals and Rocks,1998,18(2):47-51.

［4］赖生华,刘文碧,李德发,等.泥质岩隙油藏特征及控制发育的因素.矿物岩石,1998,18(2):47-51.

The failure process of fiber concrete is: elastic stage, crack stage, crack development stage and fracturation stage.

相应的纤维混凝土断过程包括：弹性阶段、开阶段、发展阶段、断阶段。

ACD (Active Camming Device) - Protection device that secures in rock cracks or pockets by means of spring-loaded cams. See SLCD.

使用弹簧凸轮装置岩石或者岩洞做确保的保护器材。

According to the properties of lost circulation in the creviced formation, this paper presented a mathematical model of the lost circulation law.

本文根据地下的漏失特性,建立了地下漏失规律的数学模型,并导出了各种流体中的流动规律。