查询词典 mechanical damage

This observation indicates, after underfill encapsulation, it might be no longer valid to model the PCB as a homogeneous material, instead, local effects on micro-structure and mechanical properties might have to be considered.

该结果说明在充胶倒装焊接研究中，至少在某些情况下，可能必须考虑印刷电路板的结构及力学性能上的不均匀性。

The thermal fatigue life of SnPb joints in Flip Chip lies on underfill mechanical properties and delamenation.

热应力重分配的决定性因素为底充胶杨氏模量，热膨胀系数的影响相对较小。

The results show that mechanical heterogeneity has great influence on the J-integral of welded joint containing transverse crack. The J-integral on the path cross the interface between welded joint and base metal is higher than the J-integral on the paths in the weld metal for undermatched joint,while the J-integral on the path cross the interface between weld metal and base metal is lower than the J-integral on the paths in the weld metal for overmatched joint. Moreover,the difference of J-integral values increases with the increasing of the load and strength mismatching difference and the path-enclosed length of interface between weld metal and base metal.

计算结果表明：力学不均匀性对含横向裂纹焊接接头的J积分有重要影响，低匹配焊接接头中积分路径穿越焊缝与母材界面的J积分值高于积分路径在焊缝内的J积分值，高匹配焊接接头中积分路径穿越焊缝与母材界面的J积分值低于积分路径在焊缝内的J积分值；载荷越大，焊缝与母材的强度差别越大；积分路径中包含的焊缝与母材界面长度越大，J积分的差值越大。

Mechanical behavior and modeling of partially saturated soils under undrained condition has drawn much less attention.

尽管有些学者业已提出力学模型以描述部分饱和土壤之力学行为，但对於部分饱和土壤的不排水力学行为则鲜有著墨。

The Stroh violin used mechanical amplification similar to that of an unelectrified gramophone to boost sound volume, in the late 19th and early 20th centuries before electronic sound amplification became common.

亮声小提琴，它出现在十九世纪末二十世纪初，在电子扩音器普遍采用之前。它配有类似无电留声机的机械扩音器，以此来提高音量。

The unfractured plastics slice is contrasted with fractured plastics slice in compositions, microstructures, crystallinity, thermal and mechanical properties by FT IR and X ray fluorometer TEM, XRD thermal analysis and tension test instrument.

对不会断片和会断片两种塑料片材的成份、微观织态结构、结晶度、热和机械性能用FT IR、X射线萤光光谱仪、TEM、XRD、热分析仪和拉力实验机进行对比研究。

The etiology and pathogenesis is not very clear,may be due to excessive mechanical load or unbalanced distribution of cartilage wear,and then chondrocyte metabolic changes.Cell release a variety of catabolic enzymes that lead to aggrecan degradation,collagen network useless and cartilage unhomogeneity.

整合素作为细胞表面受体使整合素在细胞跨膜信号传递中起一定的作用，并且参与细胞的多种生理功能，如细胞的生长、发育、分化、凋亡等，同时参与多种病理过程，如淋巴细胞向炎症部位的聚集及肿瘤细胞的浸润等[2]。

The main results of study is following:①Design of mechanical loading device:We have designed an uniaxal loading device according to the substrate straining principle.

主要研究工作和结果如下：①机械拉伸加载装置的加工制作根据基底膜形变原理，自行研制了单轴细胞拉伸装置。

The experimental results show that the mechanical properties, thermal stability and processability of UV irradiated PP/STC are improving quite a lot as compared with unirradiated PP/STC.

通过紫外辐照聚丙烯的增容作用，可获得具有良好加工性能和力学性能的PP／STC材料。

Machine use automatic lubrication system,have unoil alarm functions in order to ensure the mechanical components operate normally.

机床采用自动润滑系统，具有无油报警功能，以保障机械部件正常运转。

The production moved off-Broadway to New York City, where she won the Joseph E. Calloway award for her performance, and was profiled in American Theater Magazine as one of ten young theater artists to watch.

生产提出过百老汇的新的纽约市，在那里她赢得了约瑟夫calloway奖，她的表现，并于异型在美国的战区杂志之一， 10战区的青年艺术家观赏。

It's a risk tradeoff, and I believe that adding test support code usually wins.

这是一个风险的权衡，我相信添加测试代码通常会占上风。