短語詞組短語bit -tooth h dullness 鉆頭牙齒磨鈍度ring bit tooth 環(huán)狀鉆齒bit tooth -row 鉆頭齒圈tooth bit 鋼齒輪鉆頭Steel Tooth Bit 鋼齒牙輪鉆頭milled tooth bit 銑齒鉆頭Ball Tooth Bit 球齒鉆頭ball -tooth bit 球齒鉆頭 返回 bit tooth