“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	offset guiding telescope offset in right ascension offset local time offset-locked laser frequency stabilization offset observation offset paper offset printing offset proofing offset rational curve offset rings offsetting offshoot offshore breakwater offshore development of oil and gas offshore engineering offshore engineering structure offshore enhancement and aquaculture engineering offshore fishing offshore gas well string offshore installations offshore marginal oil and gas fields offshore microbes offshore minimal platform offshore minimal platform abroad offshore minimal platform in China

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