擴(kuò)錐孔器countersinking: 錐形擴(kuò)孔; 鉆埋頭孔; 鉆錐坑; 锪孔; 锪錐孔countersink tooth crown: 釘孔冠countersinking bit: 埋頭鉆; 平頭鉆頭countersink screw: 沈頭螺釘countersinking bit in three pieces: 三件埋頭鉆下載手機(jī)詞典可隨時隨地查詞查翻譯