应力

The measurement results show that the minor principal stress in the rock mass around the high-pressure cavern is 5.6–7.9 MPa and nearly horizontal,the jacking strength is about 6.0–8.0 MPa,and the permeability under pressure of 7.0 MPa is less less than 1.0 Lu.

测量结果表明，测点洞段围岩的最小主应力值为5.6～7.9 MPa，最小主应力状态为近水平；测点洞段围岩的抗劈裂强度一般为6.0～8.0 MPa，围岩自身具有较强的承载能力；在7.0 MPa高压下洞壁围岩的透水率大多小于1.0 Lu。

Under the given loading method, the experimental results about new granite in Laxiwa show that the resilient deformation is found and acoustic emission counts rate is evidently enhanced when the minor principal stress is unloaded. The enhancing extent of acoustic emission counts rate increases with the intermediate principal stress.

在设定的加载方式下，针对拉西瓦新鲜花岗岩的试验结果表明：当卸载最小主应力时，岩石发生回弹变形，声发射计数率比卸载前显著增加，增加的幅度随中间主应力的增加而逐渐提高。

Circular and catenary always represent the shapes of minor principal stress soil arch between two parallel walls, but which shape should be used in the calculation of active earth pressure on two parallel walls remains disputed. Considering fully developed wall friction or partially developed wall friction, circular and catenary, the two shapes of minor principal stress soil arch between two parallel walls are theoretically analyzed. According to the shapes of soil arch, the coefficients of earth pressure corresponding to different angle of internal friction and that of wall friction are obtained, and the formula of active earth pressure on two parallel walls is derived.

鉴于计算平行墙间侧土压力时关于土体小主应力拱形的选择尚存在争议，考虑墙土摩擦角充分发挥和部分发挥两种情况，对平行墙间土体小主应力圆弧拱和悬链线拱分别进行了分析，得到了对应于不同内摩擦角和墙土摩擦角的侧上压力系数，以及平行墙间侧上压力的理论公式。

Through analyzing the surveying result and factors leading to cracks, it brings forth some details which should be taken care in future designing and constructing this type of bridges, such as computing theory of load transverse distribution factors, shear lags affection on web normal stress and principal stress.

通过对三门峡黄河公路大桥裂缝调查结果和产生原因的分析，提出了今后此类桥型在设计和施工中应注意的问题和细节，如：横向分布系数的计算、剪力滞效应对腹板正应力及主应力的影响等。

The second principal normal stresses can lead to grinding crack which generates forward beneath the abrasive grain in the plane of grain motion.

在磨粒前下方，受第二主应力的作用，磨削裂纹主要沿磨削方向开裂；在磨粒后方，受第一主应力的作用，产生垂直磨削方向的磨削裂纹。

And the Stress-Life probability model was built for the purpose of reliability analysis.

为了便于进行可靠性分析，进而建立了基于本文改进应力寿命法的应力寿命概率模型。

The following conclusions are made in this paper. First, in the 3D FEA analyses of a tubesheet, neglecting the local influence of contact problem, the stress distribution of two models are similar.

本文得到如下结论：（1）对兼法兰形式的管板做三维有限元应力分析时，在忽略接触等问题的局部影响下，非线性模型和简化模型的应力计算结果相近。

Since the stresses and strains at all sample points over the loading history are computed independently, the propagation of cumulative errors at the system stage is reduced in essence.

在单元特性分析阶段，新算法将在荷载空间内同时确定广义应力及广义应变的双变量问题变为对已知的广义应力自变量进行定积分的单变量问题。

Methods In four kinds of prosthodontia design models, stress distributions in the remaining sections of the alveolar bone of the mandibular first molar with hemisection models were evaluated.

运用光弹应力冻结切片法，分析⑤⑥⑦、⑤⑥、⑥⑦、⑥固定桥修复模型的第一磨牙半切术后余留根牙槽骨应力分布状况。

The compression stress is approximately 3 times the yield (for 70,000 psi–210,000 psi).

压缩应力大约是屈服应力的3倍（70，000 psi - 210，000 psi）。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷