“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	external excitation external exposure external fertilization external field external finance external fixation external floating roof tanks erection external floating roof tanks for oil storage external force external force, applied force external forced convection heat transfer external forcing external forcing of climate system external fragmentation external galaxy external gateway protocol external gill external governance external granular layer external heating of diamond anvil cell external heavy atom effect external hemorrhoids external identifier external iliac artery external iliac vein

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