“rope boring”的概念、定义、翻译、参考文献-科学参考

单词	rope boring
释义	rope boring [`rōp ´bȯr·iŋ] ^ENGINEERING A method similar to rod drilling except that rigid rods are replaced by a steel rope to which the boring tools are attached and allowed to fall by their own weight.
随便看	green green algae green belt Greenburg-Smith impinger green chalcedony green concrete green copperas green flash green gland green glass green gold greenheart greenhouse greenhouse effect Greenland anticyclone greenlandite Greenland spar green laser green lead ore green lumber green manure green mold green mortar green mud green nickel oxide

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