查询词典 crack

Firstly, the basic character of the remote filed eddy current is simulated and analyzed in case of two-dimension axial symmetry which approves the existence of remote filed eddy current phenomenon; the full circumferential defect model is investigated to approve the feasibility of using the RFEC techniques to detect the position and depth of defect; the pit corrosion、circumferential and axial crack models are simulated, and the defect character based on voltage plane polar plot and the changes of phase and amplitude are analyzed to supply the standard for defect reconfiguration.

首先，在二维轴对称情况下仿真与分析了远场涡流的基本特性，证实了远场涡流现象的存在；对全周向缺陷的远场涡流检测进行了详细研究，证实了远场涡流检测缺陷位置和深度的可行性；对点状腐蚀、轴向与周向裂纹三种非轴对称缺陷进行三维有限元仿真，利用相位差和幅值变化曲线与电压平面极坐标图对缺陷特征进行分析，为缺陷形状重构提供了依据。

The surface crack of the pontoon shell plate is simulated by using the ABAQUS program.

对于半潜式钻井平台浮箱，裂纹的扩展不仅影响结构的水密性甚至可能对结构的安全产生巨大威胁，并直接决定平台的整体使用寿命。

Let him not quit his belief that a popgun is a popgun, though the ancient and honorable of the earth affirm it to be the crack of doom.

请他保有这样的信念：玩具枪的声音就是玩具枪的声音，尽管这世界的古人和今贤们坚持说那是世界末日开始的声响。

Let him not quit his belief that a popgun is a popgun, though the ancient and honorable of the earth affirm it to be the crack of doom

学者应该坚持自己的信仰：气枪的一响不过是啪的一声而已，尽管那些年高者与位高者断定它是世界末日的霹雳。

On the basis of local loaded experiment of external prestressing on laminated beams of concrete and theoretical analysis,we put forward the calculated formula for deformation and maximum crack width,considering the force bearing property of two stages of the laminated elements of concrete and the recent research results for beams of partly prest...

在体外预应力混凝土叠合梁现场加载实验和理论分析基础上，结合无黏结预应力混凝土梁已有的研究成果，同时考虑混凝土叠合构件的二阶段受力特性，给出了体外预应力混凝土叠合梁变形及最大裂缝宽度计算方法。通过与现场实验结果对比，表明该公式计算精度较高，可用于指导同类工程的加固设计。

The dissertation investigated the detailed process of appearing, distributing and developing of crack and concluded the presumable destroy shape and mechanism under all kinds of bearing based on intention theory of concrete.

在混凝土强度理论的基础上，对桥梁混凝土裂缝的出现、分布和开展情况进行了研究，分析了其在不同荷载作用下的破坏形态和机理。

According to gathering plentiful relative datum of of Xuer section of Yazihe structure and seismic、 well logging、 surveys、 core ect during the exploitation and exploration,the research starts with analise of slice data、 core observation and core specimens,then combines with coordination、 analyse、 concluding and the former research result.The article recognizes the tectonic feature of Xuer section of Yazihe structure and it"s tectonic evolution,analyzes the distributing feature of oik、 gas、 water、 their dominated factor、 the pressure feature of gas reservoir and especially the conservative condition of Xuer gas reservoir.At the same time,the article acquaintances the depositional feature and sedimentary environment and discusses the main genesis typeof reservoir sandstone.By analyzing the physical feature and physical relation of reservoir rock, the article first classifies and evaluates the reservoir rock simply ,then concludes it"s feature of reservoir and permeability. According to detailed core observation and fracture explanation in well logging ,the article uses single well fracture indentifying and evaluation to confirm the section where the fracture growths,putting emphases on the method to get parameter of fracture,such as fracture width and fracture porosity.Finally,combining with the principal curvature for tectonics deformation the article predicts the plane fracture of reservoir and weave the general evaluation map of crack fracture growth.

本文主要是通过大量、全面地收集鸭子河构造须二储层及气藏在油气勘探和开发过程中取得的地震、录井、测试、岩心及开采等方面的相关资料，从薄片资料、现场岩心观察和岩心样品分析资料入手，通过室内整理、分析、归纳，并结合前人的研究成果，认识鸭子河构造须二段的构造特征并分析构造的演化，浅析其油、气、水的分布特征及控制因素，气藏压力特征、重点分析须二气藏的保存条件；了解储层的沉积特征和沉积环境，从多方面讨论储层砂体的主要成因类型；分析储层的物性特征及物性间关系，并对储集岩进行简单的分类评价，归纳其储渗特征；通过详细岩心观察和测井裂缝解释，进行单井裂缝识别与评价，来确定裂缝发育层段，重点放在裂缝参数的求取，如裂缝宽度、裂缝孔隙度等，并结合构造曲率法进行储层平面裂缝的预测，编制裂缝发育综合评价图。

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。

The first principal normal stresses can lead to grinding crack which generates behind the abrasive grain in the plane perpendicular to grain motion. The mechanical properties of ceramics obviously affect the grinding processes.

陶瓷材料的机械性能是影响磨削加工过程的主要因素之一，在相同加工条件下，不同的陶瓷材料其加工性能不同。

Using the principle of superposition,the original problem was converted into two sub problems with hole edge crack.The remote bending was applied to the first problem.

利用叠加原理，将原问题转化为两个含有孔边裂纹的子问题，远程弯曲只存在于第一子问题。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了