“tractor drill”的概念、定义、翻译、参考文献-科学参考

单词	tractor drill
释义	tractor drill [`trak·tǝr ¦dril] ^{MECHANICAL ENGINEERING} A drill having a crawler mounting to support the feed-guide bar on an extendable arm.
随便看	epidermolysis bullosa epidiascope epididymis epididymitis epidiorite epidosite epidote epidote-amphibolite facies epidotization epidural epieugeosyncline epifauna epigaster epigastric region epigastrium epigean epigene epigenesis epigenetic epigenetics epigenite epigenotype epigenous epiglottis epigynous

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