“bottom pillar”的概念、定义、翻译、参考文献-科学参考

单词	bottom pillar
释义	bottom pillar [`bäd·ǝm ´pil·ǝr] ^{MINING ENGINEERING} A large block of solid coal left unworked around the shaft.
随便看	moderate gale moderator modern algebra modern control Mode S mode shift mode skip mode switch mode transducer mode transformer MODFET modification modification kit modified asphalt modified base modified Bessel equation modified Bessel functions modified betatron modified constant-voltage charge modified exponential curve modified gunmetal modified Hankel functions modified index of refraction modified Julian date modified Lambert conformal chart

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