“double drill column”的概念、定义、翻译、参考文献-科学参考

单词	double drill column
释义	double drill column [¦dǝb·ǝl `dril ´käl·ǝm] ^{MINING ENGINEERING} Two drill columns connected by a horizontal bar on which a drill machine can be mounted. Also known as double jack.
随便看	mist projector mistral mistranslation mistuning MIT bag model Mitchell's disease mite miter bend miter box miter gate miter gear miter joint miter saw miter valve miticide mitochondria mitochondrial crest mitochondrial deoxyribonucleic acid mitochondrial genome mitochondrial plasmid mitogen mitogenesis mitomycin cement rock cement-sand process

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