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1.A conductor termination in a switch or relay a metal element(usually of special alloy or plating) through which current flows when the device is closed and which separates from another contact to open the circuit.
开关或继电器的导体端部；（通常是合金或镀金的）一个金属片，当装置接通时电流流经它，当它同另一个触点分离时则切断电路。参阅relay。收藏指正
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