“air shaft”的概念、定义、翻译、参考文献-科学参考

单词	air shaft
释义	air shaft Encyclopedia 工学竖井释 ventilation shaft；air shaft通风井用于地下矿山新鲜风流进入井下或污风排出的井筒。保证将足够数量的新鲜空气连续供给井下各采掘作业面，并将污浊空气从矿井中排出，防止矿井内大气污染，创造安全舒适的井下作业环境。简称风井。
随便看	transitive design transitive digraph transitive embedding theorem transitive extension transitive functional dependency transitive graph transitive group transitive group action transitive group of motions transitive G-set transitive law transitive measure-preserving transformation transitive monomial group transitiveness transitive operation transitive permutation group transitive points transitive pseudogroup transitive reduction transitive relation transitive representation transitive set transitive structure transitive subgroup transitive tournament

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