“ventilation shaft”的概念、定义、翻译、参考文献-科学参考

单词	ventilation shaft
释义	ventilation 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	preacher pre-action fire sprinkler system preaction sprinkler system preadaptation pre-adaptation to climate change preadditive category pre advancement preageing preaging Preah Vihear Province Preah Vihear Temple Preah Vihear Temple Dispute pre-alarm of big data prealbumin prealgebra prealgebraic variety preallocation prealloy pre-alloyed powders prealloying preamble preamble to the constitution preamp pre-amplification preamplification

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