Among the pressure contacts studied, indium contact has the lowest contact resistance, while copper, tin, and phosphor-bronze contacts must be electrically formed before use.
在铟、紫铜、锡、磷铜等机械接触中，铟电极具有最低的接触电阻，其他电极须经电冶成方能进行测定。
Tin phosphor bronze, corrosion resistance and high strength. Welding of copper, silicon bronze and brass.
锡磷青铜，耐蚀、强度高。铜、硅青铜及黄铜焊接用。
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