词汇	abrasion drill
释义	abrasion drill 回旋钻
随便看	percent by weight per cent by weight percent dissociation percent distortion percent disturbance percent efficiency percent egg production percent change percent character percent clearance percent coarser percent cold reduction percent compaction percent complete percent completion per cent completion percent composition percent concentration percent conductivity percent consolidation percent consonant articulation percent contrast percent control of reproduction percent conversion percent-correct