破坏点

The round, arch wall and hemicycle were with the obvious stress concentration at the top of chamber, close to point of concentration.

结果 得出了不同形状闲室受拉破裂的破坏形式，圆形、直墙拱形、半圆形硐室的顶部应力集中明显，接近点集中。

Theobserved strain is 10~2 times as local point strain at the same observed stress.This indicates that macroscopical symmetrical rock is quasi-brittle materialwith microcosmic heterogeneousness and its macroscopical mechanicalbehavior is the results of reciprocity and magnification between microcosmiccharacteristic, not simple sum.(4) The degree of irregularity of strain increases with the number of cycle.But degree of irregularity of transverse strain fluctuates larger at the samecycle. Moreover degree of irregularity of transverse strain is larger than that ofaxial strain. This shows that deformation and failure of rock is process ofevolvement of small crack. Small crack evolves from even and out-of-orderstatus to heterogeneous and ordinal status.(5) Ultrasonic speed decreases with the number of cycle. The decreasecourse is such: Firstly, ultrasonic speed fluctuates in a steady scope in somecycles; And then ultrasonic speed quickly decreases to a certain more smallvalue; Afterwards in succedent cycles, ultrasonic speed fluctuates about thevalue. That is to say, ultrasonic speed fluctuates and decreases at intervals ofcycles. In deformation process of rock, quantitative change and qualitativechange of its small crack evolvement carry through crosswise.(6) Strength and modulus of rock decrease with exponential function asscale of specimens increases.

同一表观应力下，局部点应变与表观应变相差可达2个数量级，表明宏观上均匀的岩石是具有细观特征的准脆性材料，其宏观力学行为是细观特征相互作用、放大的综合结果，而不是简单的叠加；(4)岩样轴向应变不均匀程度和横向应变不均匀程度随循环次数的增加渐进增大，但是在同一个循环内，横向应变离散系数随应力的变化波动较大，且同一循环级别下，横向应变不均匀程度大于轴向应变不均匀程度，表明岩石内部微裂纹的演化是岩石变形破坏的本质特征，这一演化表现为微裂纹从均匀无序分布逐渐向非均匀有序发展；(5)随循环次数的增加，所有岩样内部超声波速会出现衰减，衰减过程表现为在某几次循环内超声波速在某一相对范围内波动，然后急剧减小到某一较小值，在随后的循环内，超声波速又会保持在这一较小值附近波动，即超声波速表现为波动和急剧减小间隔形式衰减，表明从宏观看来平稳的岩石变形过程，内部结构演化过程(微裂纹发展及其相互作用)却表现为均匀量变和突发质变不断交叉进行的现象；(6)岩石强度和弹性模量随尺度增大呈指数函数规律减小。

It discovered that effect of oxygen on the corrosion rate was less than that of sulfide hydrogen and carbon dioxide. Evident pits were observed.

在长庆油田环境中，H2S、CO2对套管腐蚀影响程度远大于O2，表观存在明显的点蚀破坏。

The distribution of corrosion potentials became inhomogeneous gradually with increase of immersion time.

例如在海洋环境中，铝的主要腐蚀破坏形式是点蚀和缝隙腐蚀。

But cells edema and destroy of cells'configuration in brain organise in intervenor groups were statistic lighter than that of model group.

AQP4干预组和HO-1干预组各时间点脑组织结构的破坏和细胞水肿的程度均较模型组轻。

In an visibility analysis sight, expressed avoids in this scenic spot sight scope planted agent constructing some not beautiful artificial facility or carrying on the artificial destruction, but may establish some appropriate artificial scenic spots, builds the scenic forest and so on; The line sight is a set which regards by the innumerable spots is composed, because the traffic lane is the tourist mainly watches during the route, in its sight scope landscape exquisite degree has directly affected scenic area comprehensive esthetic sense; Two intervisibility, contained two scenic spots respectively to see the region scope, as well as building the exquisite landscape in the public sight.

可视性分析中的一点视域，表示在这个景点视域范围内应避免建设一些不美的人工设施或进行人为破坏，但可以设置一些合适的人工景点，营造风景林等：线视域，可以看作是由无数个点视组成的集合，因为车道是游人的主要观赏路线，其视域范围内的景观优美程度直接影响了景区的综合美感度；两点通视，包含了两个景点各自看到的区域范围，以及在公共视域营造优美景观。

It is proved that thermal fatigue is the main cause of the invalidity of the package.

实践证明热作用是芯片封装组件失效破坏的主导因素，因此热循环条件下的焊点可靠性研究有着非常重要的意义。

The action point of limiting force on retaining structure is not always at 1/3 of the height of retaining structures, but varies with the friction angle δ between soil and retaining structures, the type of limiting state, the failure mode, the internal friction angle φ, and cohesion c of the soil, ranging from 1/5 to 2/3 of the height of retaining structures.

3土体极限荷载P〓的作用点位置不象Coulomb理论中假定的那样，总是作用在墙高的1／3处，而是与土体极限状态的类型、土体的破坏形式、墙土之间的摩擦角δ、土体的内摩擦角φ和粘聚力c有关系，在挡土结构物高度的1／5到2／3的范围内取值。

In recent years monolayer cable net point supporting glass curtain wall is adopted widely due to its simplicity and limpidity .

近年来，单层平面索网体系点支式玻璃幕墙以其简洁，通透的特点在国内外得到广泛的应用，其破坏主要由风荷载造成，目前国内外针对此种结构的风振动力性能研究甚少。

Within a few minutes, the portable analyzer locates the rogue access point and the engineer shuts it down - preventing furthertheft of information and other malicious mischief.

几分钟内，该便携式网络分析仪就查出了该流氓接入点的位置，工程师迅速将其关闭-以防止信息继续失窃及其他恶意破坏。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。