“penetration rate”的概念、定义、翻译、参考文献-科学参考

单词	penetration rate
释义	penetration rate [´pen·ǝ`trā·shǝn ´rāt] ^{MECHANICAL ENGINEERING} The actual rate of penetration of drilling tools.
随便看	low-energy environment low-energy physics low-energy positron diffraction Lowenhertz thread lower atmosphere Lower Austral life zone lower bound lower branch Lower Cambrian lower chord lower control limit Lower Cretaceous lower culmination lower curtate Lower Devonian lower half-power frequency lower heating value lower high water Lower Jurassic lower limb lower low water lower mantle Lower Mississippian lower motor neuron lower motor neuron disease

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