英语词汇“column drill”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	column drill
释义	column drill column drill [′käl·əm ‚dril] (mechanical engineering) A tunnel rock drill supported by a vertical steel column.
随便看	cocot cocots cocotte cocottes cocounsel co-counseling co-counselling co-counselling international coco yam coco-yam cocoyam cocoyams cocozelle cocp cocpa cocpc cocpd coc&pp cocqg cocr cocra cocreate co-creating our reality cocreator cocroach

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