“bucket drill”的概念、定义、翻译、参考文献-科学参考

单词	bucket drill
释义	bucket drill [`bǝk·ǝt ´dril] ^{MINING ENGINEERING} An auger stem drill in which the drill bit is replaced by a bit incorporating a steel cylinder to confine the cutting.
随便看	block and fall block and tackle block body block brake block brazing block caving block chaining block check character block cipher block clay block coal block coefficient block copolymer block correction block data block diagram blocked F-format data set blocked impedance blocked impurity band detector blocked operation blocked-out ore blocked reading frame blocked resistance blocked-up block encryption

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