And all can run on copper or fiber-optic cable. 所有這些均可在銅線(xiàn)或光纜上運行。
Copper wires are highly conductive. 銅線(xiàn)的導電性很好。
This "horseshoe" was coated with varnish and a layer of copper wire was wrapped around it. 他把一根鐵棒彎成了馬蹄鐵型，在馬蹄鐵上涂了清漆并在上面繞了一層銅導線(xiàn)。
Copper wires are carried back from the rotating terminals to the individual sliprings along grooves in the outside of the shaft. 銅導線(xiàn)從旋轉凸塊沿著(zhù)軸外部的凹糟引回到各個(gè)滑環(huán)上去。
