闸刀开关 closing switch ; Circuit breaker ; knife edge switch

指示器刀闸开关 indicator blade

单极闸刀开关 [电] single-pole knife switch ; onepoleknifeswitch ; one-pole knife switch ; single pole single throw

小型刀闸开关 baby knife switch

检修闸刀开关 inspector knife switch

三相胶木闸刀开关 phase bakelite chopper switch

三极双掷闸刀开关 three-pole double-throw knife switch

闸刀开关铜片 switch tongue ; switch blade

模型箱闸刀开关 mould case fused knife switch