压下的

Under compressive stresses, tensional failure will occur in the rock bridge of the end of joint, which leads to connect new cracks of rock bridge with the nearby primary joints.

当节理在压应力作用下所产生的次生裂纹扩展达到相邻节理后，岩体就会产生贯通裂纹而破坏。

By driving method in two ways:(1) mechanical, engine mounted on the outer cylinder by the gas distribution on the eccentric cam shaft wheel drive, the use of oil-absorbing membrane produced, oil pressure role in the fuel pump with hand-arm lower end, when the gasoline engine does not work, can be used to pump oil.

按驱动方式分两种：（1）机械式，装在发动机缸体外侧，由配气凸轮轴上的偏心轮驱动，利用膜片产生吸油、压油作用，在汽油泵下端装有手动臂，当汽油机不工作时，可用来泵油。

Actually, downhole casing is cemented at its bottom, and fastened by casing head at its top, so the axial tension caused by internal pressure does is not loaded by the casing, instead, by well bottom and the casing head, etc..

实际井下套管下端被水泥固定，上端被套管头固定，此时套管承受内压所产生的轴向拉力，并不作用在套管上，而作用在井底和上端约束上。

The method of drilling by the wind coal drill ,the coal body produces the crack and releases gas under the conditions of the dynamic pressure function of mining field,then draining gas with drainage facility to govern the local high gas region at working surface are introduced.

介绍了利用风煤钻施工钻孔，在采场动压作用下煤体产生裂隙释放瓦斯，然后利用抽排设施抽放瓦斯，治理采面局部高瓦斯区域的方法。

The copper-bearing gold ores were extracted from copper-leaching residues under the conditions of the partial oxygen pressure of 0.45 MPa and the temperature of 110 ℃ oxidated for some time in the autoclave.

摘 要：含铜金矿在氧气分压为0.45 MPa、温度约为110 ℃条件下于高压釜中氧化一定时间，浸出铜后，渣氰化浸金，获得的铜、金浸出率分别为90.3%和96.55%。

It is also concluded that the next order ITG eigenmode with tearing parity dominants only in the lowβand weak magnetic shear regime.

研究还表明具有撕裂模结构的高一阶ITG模只在低比压和弱磁剪切下占优势。

CAM-1–targeted but not control microbubbles attached to cultured endothelial cells, although firm attachment at the highest shear rates (8 to 12 dynes/cm2) occurred only in pulsatile flow conditions.

尽管与仅在血液流动状态下发生的以最高剪切压率(8 to 12 达因/cm2)紧密联系，但靶向血管细胞粘附分子-1 (CAM-1)并没有控制与培养内皮细胞相关微泡斑块。

In most applications, CSB bearings can be fitted by press. For this procedure, a mandrel and a press machine are used, it is forbidden to hit the bearing in order to avoid deformation of bearings. The housing inner side should smooth without contamination.

通常情况下，轴承可以采用压力装配的方式进行安装，装配时应采用芯轴慢慢压入，禁止直接击打轴承以免产生变形，装配前应确保座孔内表面光洁无异物。

ZnO varistors is characterized by its excellent nonlinear volt-amppere characteristic and very low leakage current under steady-state voltage.

氧化锌压敏电阻器具有优良的非线性伏安特性，在稳态工作电压下漏电流很小。

Table shows pressure drop through Series 777M1 strainers at various flow rates using standardly furnished 20 mesh screens.

表中显示在标准配置20筛目过滤网和各种流量下通过系列777M1的压降。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。