“noncontacting switch”的概念、定义、翻译、参考文献-科学参考

单词	noncontacting switch
释义	noncontacting switch Encyclopedia 工学〔开关电器〕释 noncontacting switch无触点开关靠改变电路阻抗值的变化，阶跃地改变负荷电流而完成电路通断的开关电器。
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