“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	decoy jamming decoy jamming deflection technology decoy nucleic acid decoy state decreasing decreasing failure rate decreasing filtration decreasing function Decreasing Law of New Vocabulary Growth decreasing marginalbenefit of forestland decreasing operator decreasing progression decreasing rate decreasing relation decreasing sequence decreasing series decreasing set decree Decree in Farmland of the Southern Song Dynasty Decree of the State Council of the People's Republic of China Decree on Land Decree on Peace Decree on River Management of Jin Dynasty Decree on the Democratization and Development of Television and Radio Broadcasting in the USSR Decrees and Regulations of Song Dynasty

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