断裂

On the other hand, macro-fracture mechanics has not developed perfectly and needs to be studied continuatively, especially the application in the practical engineering.

断裂力学是50年代开始蓬勃发展起来的固体力学新分支，有微观断裂力学与宏观断裂力学之分。

Aiming at the fracture in operation of damageable pump shaft used on locomotive, macroscopic and microscopic analysis of the pattern of fractured cross section in pump shaft is conducted and it is recognized that the fracture is typically caused by combined action of bending and torsion fatigue.

针对机车用水泵轴在使用中容易发生断裂的问题，对水泵轴断口的宏观和细观形貌进行了分析，认为断口为典型的弯扭复合疲劳断口。通过检测水泵轴上装配的齿轮，发现由于齿轮的加工误差过大，在轴的退刀槽根部造成了较大的附加拉应力，最终导致轴的断裂。因此及时消除齿轮的加工误差，同时提高安装精度，是防止此类断裂发生的关键

The fault, stretching about 20km, with strike NE45° and dip NW, is situated in the place between the bed rock and Quaternary sediments. Fault deltidial surface and scratch can be seen at the bare bed rock of bottom wall.

之间。断裂位于台地前缘基岩与盆地南缘第四纪沉积层之间，断裂延伸约20km以上；断裂下盘基岩一侧有清楚的断层三角面和断层擦痕等，断层走向NE45。

These four aspects are: the foreworn and frature of the wheel rim , tread foreworn bedded d ecrustation, regional crush and subside and early brittle fracture of the wheel rim .

为了有效地提高行走车轮的工作寿命，使其接近或达到设计周期，笔者从车轮损坏的形式、部位即轮缘磨损断裂、踏面磨损层状脱皮和局部压碎凹陷、轮缘早期脆性断裂四个方面进行了分析，找出了之所以产生磨损和断裂的原因，并提出了延长车轮工作寿命的对策。

On the basis of lithosphere dynamics, it is possible to deduce whether the boundary fault cuts through the Moho into the upper mantle of the lithosphere or not, and it is also possible to get the distributions of the values of Te in the study area by gravity tomography. Therefore, it helps to further understand the deep lithospheric geodynamical features in this study area.

通过岩石圈动力学理论，不仅可以推断边界断裂是地壳断裂还是地幔断裂，而且可以通过重力反演得到该区岩石圈有效弹性厚度的分布特征，从而进一步了解该区深部岩石圈形变特征。

In the mechanical test, 20 cadaveric humeri of children fixed with formaldehyde were divided randomly into 10 groups and the compressive, tensile and bending tests were conducted.

结果得出：①整骨试件不同，其断裂强度不同；髁上部的压缩、拉伸、弯曲强度低于骨干部和外科颈；断裂多在髁上部，且尺侧边缘骨皮质首先断裂。

The early stage of the Yanshan movement generated an Early Jurassic downfaulted basin and a Middle Jurassic compressional-downwarped coalaccumulating basin.In the middle stage,the Mid-Late Jurassic witnessed the formation of a volcanic downfaulted basin bounded by NW and NE deep faults,intermediate-basic and acid volcanic eruption and hypabyssal and near-sur...

燕山运动早期形成早侏罗世断陷盆地和中侏罗世挤压坳陷型聚煤构造盆地；中期中晚侏罗世形成被NW、NE向深大断裂围限的火山断陷盆地，中基性—酸性火山喷发和浅成、超浅成中酸性岩浆侵入，晚侏罗世末形成了一系列NNE向褶皱和逆冲推覆构造带；晚期早白垩世再次形成断陷盆地和开阔平缓褶皱，义县组不整合在火山岩之上，晚白垩世处于挤压造山后的山体隆升阶段，左云组不整合在义县组之上，伴随有壳源型花岗岩侵入，NW、NE向断裂复活，形成地堑、地垒式断裂组合，导致山体隆升。

The large banded structures would lead to break during drawing.The intermidiate ones would result in extensible crack but not result in break during drawing.The small ones could exist inside the wire in the form of incontinuous particulates,resulting in a decrease of the p...

粗大的带状组织将直接导致拉丝断裂；稍小一点的带状组织不会引起拉丝断裂，但在钢丝内部存在着明显的非稳态扩展裂纹，是不安全的；细小的带状组织不会引起拉丝断裂，最终将以断续的点状形态存在于成品钢丝中，但对其安全性存在重大隐患。

The large banded structures would lead to break during drawing. The intermidiate ones would result in extensible crack but not result in break during drawing. The small ones could exist inside the wire in the form of incontinuous particulates, resulting in a decrease of the performance of wire.

粗大的带状组织将直接导致拉丝断裂；稍小一点的带状组织不会引起拉丝断裂，但在钢丝内部存在着明显的非稳态扩展裂纹，是不安全的；细小的带状组织不会引起拉丝断裂，最终将以断续的点状形态存在于成品钢丝中，但对其安全性存在重大隐患。

The analysis of Vp and Vs sectional data of earthquake distribution suggests that the earthquakes are often centralized in the intersectant zones of faults with velocity change zone and faults with faults.

地震分布的Vp和Vs剖面资料的研究暗示，断裂与速度变化带、断裂与断裂的相交区域是地震易发生区域。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。