The mechanisms of crack propagation and the surface deformation phenomenon of silver-based contact materials are investigated based on experiments carried out and theoretical analysis in this paper.
本文在大量的实验和理论分析的基础上，研究了银基触头材料表面的形变现象—裂纹的扩展机理。
"More noteworthy phenomenon is that the report pointed out that the vast majority of suffering from" swine flu "are not the same pigs had direct contact."
更加值得注意的现象是，报道指出，绝大多数患上“猪流感”的人，并没有同猪有过直接的接触。
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