“ore pillar for mining”的概念、定义、翻译、参考文献-科学参考

单词	ore pillar for mining
释义	ore pillar for mining Encyclopedia 工学回采预留矿柱释 ore pillar for mining回采预留矿柱为保护地表地貌、地面建（构）筑物和主要井巷，分隔采区或矿段，以及防水等而留设不采或暂时不采的部分矿体。煤矿中也称煤柱。
随便看	quadratic magnitude term quadratic map quadratic mapping quadratic mean quadratic measure quadratic module quadratic non-residue quadratic non-residue modulo m quadratic optimization quadratic performance index quadratic phase array quadratic polynomial quadratic programming quadratic programming problem quadratic rate of convergence quadratic rate of increase quadratic reciprocity quadratic reciprocity law quadratic reciprocity theorem quadratic recurrence equation quadratic representation quadratic residue quadratic residue modulo m quadratic residue symbol quadratic residue theorem

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