“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	Norian norite norm Norma normal normal acceleration normal adjustment normal aeration normal aiming error normal anticlinorium normal axis normal barometer normal benzine normal bonded-phase chromatography normal bundle normal chart normal consolidation normal contour normal coordinates normal curvature normal curve normal cycle normal density function normal depth normal derivative

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