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  • The switches are available in several configurations, with 2 normally open contacts, or 1 normally open and 1 normally close contact.

    开关可以有不同的结构，可以有两个断开接点也可以有1个断开接点和1个闭合接点。

    youdao

  • The switches are available in several configurations, with 2 normally open contacts, or 1 normally open and 1 normally close contact.

    开关可以有不同的结构，可以有两个断开接点也可以有1个断开接点和1个闭合接点。

    youdao

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进来说说原因吧 确定