“shortwall”的概念、定义、翻译、参考文献-科学参考

单词	shortwall
释义	shortwall [`shȯrt´wȯl] ^{MINING ENGINEERING} 1. A method of mining in which comparatively small areas are worked separately. 2. A length of coal face between about 5 and 30 yards (4.6 and 27 meters), generally employed in pillar methods of working.
随便看	uranosphaerite uranospinite uranotantalite uranothorite uranotile uranous-uranic oxide Uranus uranyl acetate uranyl nitrate uranyl salts uranyl sulfate uranyl uranate urao urate calculi urbacid urban geography urban geology urban heat island urbanization urban renewal urban typhus Urca process urceolate urea urea anhydride

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