welding torch pipeweldingtorchpipe焊枪: welding torch hoe a surname管: pipe; tube枪管: gun-barrel; barrel; barrel assembly焊枪: welding gun; welding pistol (热塑性塑料用); welding torch; welding blowpipe◇焊枪管 torch head大枪管: derringer下载手机词典可随时随地查词查翻译