基本解释[機] 平底絲錐；精加工絲錐（等於plug tap）词组短语短語bottoming g tap 平底螺絲攻bottoming hand tap 底螺絲攻;手用平底絲錐;繙譯;底絲攻英語hand bottoming tap 手用平底絲錐tap bottoming 全釦打撈絲錐bottoming tap更多词组专业释义機械工程達底螺絲攻平底絲錐平底螺絲攻精絲錐