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。
When plate loading test is carried out, the deformation properties of surface layer will be different from that of inner layer because of the existence of disturbance.
现场岩体变形试验时，试验点部位岩体由于受卸荷、松弛影响，表层岩体变形性能与深部未扰动岩体变形性能存在差异。
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