“safety pillar”的概念、定义、翻译、参考文献-科学参考

单词	safety pillar
释义	safety pillar Encyclopedia 工学回采预留矿柱释 safety pillar保安矿柱为保护地表重要设施、地貌和主要井巷，避免其因井下开采影响而产生破坏，或分隔含水层及破碎带、矿段或矿块等目的而留设不采或暂时不采的部分矿体。
随便看	principal homogeneous space principal homomorphism principal horizontal line of photograph principal ideal principal ideal domain principal ideal ring principal ideal theorem principal idele principal idempotent principal idempotent element principal identity principal indecomposable module principal indecomposable representation principal integral domain principal integral representation principal invariant principal isotope principal isotropy group principalization principal lattice element principal leadership principal left ideal principal left ideal ring principal line principal line of photograph

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