copper-tipped端部: telos镀铜: copper facing; coppering; co ...的: 4次方是 The fourth power of 2 i ...镀铜的: copper coated; copper plated; copper plating; copper-plated; copper-surfaced; coppered; copperizing镀铜的方法: copper coating下载手机词典可随时随地查词查翻译