“lewis pin”的概念、定义、翻译、参考文献-科学参考

单词	lewis pin
释义	lewis pin [`lü·ǝs ´pin] ^{MINING ENGINEERING} A pin used for attachment to a key block; it is placed in a shallow drill hole with a wedge at either side.
随便看	basic front basic grasp basic group basic hornfels basichromatic basic input/output system basic instruction basic-lined basic-lined converter basic linkage basic motion basic motion-time study basic open-hearth process basic oxide basic processing unit basic pulse repetition rate basic Q basic refractory basic research basic rock basic salt basic schist basic sediment and water basic slag basic software

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