plug-in relay

• 插入式继电器

plug-in relay的用法和样例：

例句

1. Outgassing is a problem sometimes seen in sealed electromechanical relays.
   在密封的机电式继电器中，除气作用有时候会成为问题。
2. A contactor is a special type of electromechanical relay, where the contacts are attached to the armature.
   接触器是一种特殊类型的机电式继电器，其触点被安装在枢轴机构上。