“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	evaluation method of feed nutritional value evaluation method of forestry technical economy evaluation method of investment project evaluation methods combination evaluation model evaluation mode/model evaluation object evaluation of adaptation to climate change evaluation of agricultural extension evaluation of agricultural meteorology condition evaluation of airborne magnetic measurement quality evaluation of air quality evaluation of aquatic products freshness evaluation of bids evaluation of chest imaging evaluation of cold tolerance in crops evaluation of construction and control of urban green space evaluation of construction projects evaluation of correctional treatment effect for offender evaluation of cultivated land quality evaluation of education level evaluation of enterprise safety culture evaluation of environmental impact of planning evaluation of environmental noise evaluation of feed energy nutritional value

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