“drill jumbo”的概念、定义、翻译、参考文献-科学参考

单词	drill jumbo
释义	drill jumbo [`dril ´jǝm·bō] ^{MINING ENGINEERING} A mobile carriage or platform fitted with mechanical arms upon which several drilling machines are mounted.
随便看	shareware sharing device shark sharki shark liver oil shark oil sharkskin sharkskin pahoehoe shark-tooth projection sharp-crested weir sharp-cutoff tube sharp-edged gust sharpen sharpening stone sharp iron sharpite sharpness function technique sharpness of resonance sharps sharp sand sharp series sharpstone sharpstone conglomerate sharp tuning sharp V thread

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