【摘要】 通过现场试验,证朋了单扇混合式受循环通方法是一种在技术上可行、经济上合理的新型通方法,可以直接应用于实际生产.更多还原

【Abstract】 By field test, it is temostrated that the controlled recirculation venti-lation method of singal fan mixed form is new method which is feasiblein technology and reasonable in economy . The method can be applied topractical production directly.更多还原