“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	workflow workflow engine workflow instance workflow management workflow model workflow modeling workflow schema workflow system workflow transaction work for road breaking work function work function of metal work function of semiconductor work haozi work hardening work hardening index Work Hard to Promote Putonghua（Editorial） Work Hard to Promote the Reform of Chinese Characters, the Promotion of Putonghua and the Standardization of Chinese（Editorial） workholder work index work information collecting methods working working alliance working aperture working area

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