词汇	cosc
释义	cosc Combined Operational Service Command 联合作战勤务司令都
随便看	percussion cutting machine percussion device percussion drainage percussion driil percussion drill percussion drill bit percussion drill bit deep drilling protection percussion drill bit with flushing hole percussion drilled hole percussion drilled pile Percussion driller percussion drill hammer percussion drill hole grouting pile percussion drilling percussion drilling boring pile percussion drilling cast-in-place pile percussion drilling deep drilling percussion drilling hole percussion drilling machine percussion drilling rig percussion drilling rods percussion drilling system percussion edge coal plow percussion feeder percussion figure