countersink

过去式:

动词过去式: countersunk

更多词形:

动词过去式: countersunk | 动词过去分词: countersunk | 动词现在分词: countersinking | 动词第三人称单数: countersinks |

单词例句:

countersink reamer

埋头孔铰刀

countersink angle

埋头孔角

countersink head Bolt

埋头螺栓

machine countersink

机用锥形锪钻

countersink head screw

埋头螺丝

To drive(a screw or bolt) into a countersink.

将钻或螺栓置入埋头孔

Orthopaedic instruments.Drills, taps and countersink cutters for use with osteosynthese screws with asymmetrical thread and spherical under-surfaces.

外科医疗器械.矫形外科器械.带不对称螺纹和球形下表面的骨缝术螺钉用钻、丝锥和沉头钻(Medico-surgical equipment.

combined drill and countersink

组合中心钻 带护锥复合中心钻

countersink porcelain teeth

瓷充填