短语词组短语copper earth tube 接地铜管;翻译copper rifled tube 内螺纹钢管copper -tube bus 铜管母线copper fin tube 铜翅片管Copper aluminum tube 铜铝管copper conductor tube 空心铜线;铜导管copper nickle tube 铜管Brazed copper -tube 钎焊 返回 copper tube