“中国古代采矿选矿技术”的概念、定义、翻译、参考文献-科学参考

单词	中国古代采矿选矿技术
释义	中国古代采矿选矿技术 Encyclopedia 工学中国古代采矿选矿技术释 mining and oredressing techniques in ancient China中国古代采矿选矿技术中国古代的采矿可以上溯到石器时代对石器材料的选取。后来，随着冶金业的兴起，采矿和选矿技术也逐渐发展起来。主要技术包括露天开采、地下开采、井巷支护、岩石破碎、井巷通风、照明、排水、提运、选矿等。
随便看	betulic acid betulin betulinic acid betweenanene betweencenters Between Facts and Norms Between Friends between-group correlation between-group dispersion matrix between-group sum of squares between-group variance betweenness betweenness group betweenness relation betweenness semigroup between relation between-subjects design Between the Acts between-the-lines attack Between the stage and the screen Between tough two Betz limit BET吸附等温式 BET方程 BET比表面积

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