“rotary-percussive drill”的概念、定义、翻译、参考文献-科学参考

单词	rotary-percussive drill
释义	rotary-percussive drill [`rōd·ǝ·rē pǝr`kǝs·iv `dril] ^{MECHANICAL ENGINEERING} Drilling machine which operates as a rotary machine by the action of repeated blows to the bit.
随便看	Reynolds effect Reynolds equation Reynolds model Reynolds number Reynolds stress Reynolds stress tensor rezbanyite Rf rf R factor RFI rf preheating RF value R galaxy RGB monitor RG line RGU system RH Rh Rhabdiasoidea rhabdion rhabdite Rhabditia Rhabditidia Rhabditoidea

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