... two way break before make contact 双向先断后合触点 two way contact 双向触点 two way feed 两路馈电 ...
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... double-contact plug 二芯塞子 double throw contact 双向触点 double-contact freezer 双面接触式冻结装置 ...
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短语
双向先断后合触点
two-way break-before-make contact
双向先合后断触点
two-way make-before-break contact
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two way contact
two-way contact
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double throw contact
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