分词翻译
比重的英语翻译：
proportion; specific gravity
【化】 specific gravity; specific weight
【医】 sp. gr.; specific gravity; specific weight管的英语翻译：
canal; duct; fistula; guarantee; meatus; pipe; tube; wind instrument
【化】 pipe; tube
【医】 canal; canales; canalis; channel; duct; ductus; salpingo-; salpinx
syringo-; tuba; tube; tubi; tubing; tubo-; tubus; vas; vaso-; vessel
