在这和中心之间是一种铜银合金.Between this and the core is an alloy of copper and silver.铜基合金电触头是银合金触头的换代产品.Copper - based alloy electrical contact is silver alloy contact replacement.简要分析了银合金变色的原因.The reasons why the silver alloys tar...
氧化过程对 反应烧结 碳化硅材料的导电性能影响不大.But the oxidation of RB - SiC does't affect largely on its electric conduction.常用的轴承材料有碳化硅陶瓷 、 石墨 、 填充聚四氟乙烯等.Commonly used bearing material has SiC ceramics, graphite, PTFE, such as filling...