开关 Q-switching架 frame; rack; shelf; stand主开关架 holder-master开关 circuit changer; derail; disjunctor; on-off; make-and-break key; switch; button 分档开关 step switch; 双向开关 a two-way switch; 通断开关 on-off switch; 闸刀开关 knife switch; q 开关 q-switching; 开关按钮 shift knob; switch knob; switching push-button; 开关板 shifter plate; switch plate; 开关臂 switch arm; 开关厂 switchgear plant; 开关盒 switch box; switchgear cabinet; 开关控制 on-off control; off-on control; 开关屏 switchboard; switching; 开关调节 open-and-shut control; 开关调节器 switching regulator; 开关箱 [电工] switch-box; cabinet switch; 开关信号 switching signal; switching pad; 开关闸刀 [设计] switchblade knife; knife of switch; switch blade; 开关装置 switching device [gear]; [工业] switching mechanism; switchgear; switch(ing) unit; switchyard; switching equipment 开关,光量开关 q-switch q开关掣;开关 switch开关阀;开关管 switching valve开关盘,开关板 switch panel主开关,总开关 master switch总开关;主开关 main switchq 开关 q switchq开关 q switched unit; q switching; q-communication; q-switchingtr开关 tr switchxy开关 xy switch按开关 flick a switch保开关 protection switch壁开关 wall switch场开关 field switch窗开关 window opener磁开关 magnet contactor; magnetic contact; magnetic switch; magnistor刀开关 knife switch; knifetch灯开关 lamp switch◇灯开关衬套 lighting switch bushing笛开关 whistle controller; whistlecontroller电开关 electric sitch; electric switch; mains switch; switch顶开关 top switch
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Earliest use of relays for switch control instead of direct operation of magnets over line wires . first die cast switch frame 最早使用继电器。用于开关控制,从而代替了电线中对磁铁的直接操作。第一个压铸件开关架 成形。
Last modified time:Mon, 11 Aug 2025 00:29:56 GMT