A fifth fixed contact (150) extends through one side of the switch and provides the continous connection with the moving contact parts.
第五固定接触件（150）穿过开关的一侧延伸，提供与移动接触件的连续连接。
The structure of fixed contact, return spring and conduction ways are the major factors influencing the power-on of electromagnetic switch.
指出了静触点结构、回位弹簧弹力以及通电方式是影响电磁开关粘连的主要因素；
The movable safety piece is connected with the insulating system, is supported against by the control rod, and is in normally closed connection with the fixed contact piece.
该动保险片，它连接绝缘系统，而且，它受控制杆顶抵并常闭连 接该定接触片。
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