common-battery switchboard

... 共电式信号法 common-battery signaling 共电交换台（总机） common-battery switchboard 共闸组态 common-gate configur…

共电式电话,central battery... ... ) common-battery switchboard 共电式电话交换机 ) composite electrodepostion 共电沉积 ...

switchboard-英汉词典-英中字典... ... common battery switchboard 共电式交换机 common-battery switchboard [电]共电交换抬 ...