- normally closed push button switch
- 常闭: normal close
- 开关: Q-switching
- 常闭按钮开关: normally closed push button switch
- 接钮开关按钮开关: button switch
- 按钮开关: bs button switch; buttonswitch; face contact; pb push button; press button key; press button switch; press stopper; push button switch; push contact; push switch; pushbutton actuator; pushbutton key; pushbutton switch
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