“pilot drill”的概念、定义、翻译、参考文献-科学参考

单词	pilot drill
释义	pilot drill [`pī·lǝt ´dril] ^{MECHANICAL ENGINEERING} A small drill to start a hole to ensure that a larger drill will run true to center.
随便看	machine address machine attention time machine available time machine bolt machine capability machine check machine-check indicator monsoon fog monsoon forest monsoon low mons pubis monster Monstrilloida mons veneris montage montane montanite montan wax montebrasite Monte Carlo method montgomeryite Montgomery's tubercles month Montian Monticellidae

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