裂缝的

Thermal stresses in concrete box-girders can be significant in comparison with live load stresses, and contribute considerably to structural cracking and damage.

混凝土箱梁的温度应力可以达到或超过活载产生的应力，是导致混凝土裂缝和损坏的主要原因之一。

This article summarizes the electric log technology applying to low-resistivity, low-porosity, low-permeable pay zones and fractured reservoirs. To study the influence of drilling-mud invasion and pore texture to oil zone resistivity and its electric log response rule," in-time log " and pressure gradient log should beapplied.

今后要研究钻井液侵入与孔隙结构对油层电性质和电法测井响应规律的影响，采用"及时测井"和压力梯度测井等技术措施；测井计算饱和度技术已日趋成熟，但需采用高精度数控测井等先进适用技术和更精细的"岩心刻度测井"解释方法，进一步提高精度，以满足低孔、低渗储集层和裂缝型复杂岩性储集层的更高要求。

A crack in metal resulting from metal fatigue .

由于金属的腐朽而导致的金属里的裂缝。

This paper introduced the relationship of microcrystal structure of coke and its macroscopical properties, and the effects of coal rank and pyrogenation process on microcrystal structure etc.

对于焦炭，前者是指焦炭中的气孔、裂缝以及焦炭光学组织结构，后者则指焦炭的显微结构，包括类石墨片层的微晶单元及其空间排列方式等。

Through the research of this paper, the new standpoint is verified theoretically that borehole collapse will be caused by radial shear fracture in formations resulted from over-high drilling fluid density, and a new concept is given out that to maintain a stable borehole the maximum and minimum mud density should both be controlled.

通过本论文的研究，从理论上证实了泥浆密度过高将导致地层产生径向剪切裂缝而造成井壁坍塌的客观规律，提出了稳定井壁需要同时控制泥浆密度上、下限的新观点。

According to fully implicit method, seepage model of low-permeability fractured gas reservoirs are discretized with finite difference method, and corresponding numerical model, coefficient matrix and matrix element are obtained; then based on modern software engineering, numerical simulation software was correspondingly developed with Fortran95 programming language

按照全隐式离散化方法，采用有限差分方法对低渗裂缝性气藏渗流数学模型进行了离散，得到了相应的数值模型、系数矩阵和矩阵元素。然后基于现代软件工程的基本思想，用Fortran95语言开发了相应的数值模拟软件

Common rock samples have been shown to have velocity orthotropy according to measured experimental results .

对岩石样品的测试发现，在普通岩石具有速度正交各向异性特性，既有定向排列的裂缝和岩石的结晶所致，也有层理与岩性特征构成。

The analysis results show that the main reservoir type in the Palaeozoic metamorphic formation is the inside reservoir.

根据成像测井模式的识别实现了对基岩油气藏特征的认识、准确的裂缝分析和现今地应力场分析。

The next heaviest element in the periodic table, the inert gas helium, is used for detecting cracks in pressure vessels and the like.

在元素周期表中，接下来的更重些的元素是惰性气体氦气，它常被用作检测压力容器和其他类似东西的裂缝。

Peering fearfully over the edge of the chasm, he sees deep below the missing lamb, plaintively bleating.

他害怕的从裂缝边缘往下看，发现丢失的羊羔正在下面悲伤的咩咩叫着。

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。