... triple-pole double-throw 三刀双掷 triple pole switch 三刀开关 triple pole single throw 三刀单投 ...
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短语
三刀单投开关
three-pole single-throw switch
单刀三投开关
single pole three throw switch
三极单投刀开关
[电]
triple-pole single-throw switch
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triple pole single throw
triple-pole single throw
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