名词
中文翻译：通常关闭的辅助接触器
同义词：
['normally open auxiliary contact', 'normally closed relay例句：1. The normally closed auxiliary contact is used to prevent the main circuit from being interrupted when the switch is in the off position.（通常关闭的辅助接触器用于在开关处于断开位置时防止主电路被中断。）']
例句：
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1. The normally closed auxiliary contact is used to prevent the main circuit from being interrupted when the switch is in the off position.
通常关闭的辅助接触器用于在开关处于断开位置时防止主电路被中断。
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2. In this circuit, the normally closed auxiliary contact is activated by a signal from the control panel.
在这个电路中，由控制面板的信号激活了通常关闭的辅助接触器。
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3. The normally closed auxiliary contact ensures that the motor will not start until the power supply has been fullyestablished.
通常关闭的辅助接触器确保电机在电源完全建立之前不会启动。