The physical effects of soft particles on reliability of electrical contacts were discussed based on experimental results.
然后从静态和动态两个方面研究了两种颗粒物对电触点可靠性的影响。
High viscosity pump can transport high viscosity, high concentration without solid particles or small soft particles lubricity medium;
高粘度泵可以输送高粘度、高浓度无固体颗粒或细小软颗粒的润滑性介质；
Two kinds of soft particles gypsum and mica particles which take relatively major proportion in composition of dust often can be found in failure contact areas.
云母和石膏是两种在细尘粒中比例较大的软质颗粒物，出现在失效触点区域造成电接触故障。
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