Study on the local ventilation resistance of multistage fan station 多级机站通风局部阻力的研究
2.
How to reduce power and air cut accidents in local ventilation faces 如何减少局部通风工作面的停电停风事故
3.
The accomplishment of the control of local ventilation fan based on the theory of pulsating ventilation 基于脉动通风原理的局部通风机控制的实现
4.
Physical and chemical labs : air - exhausting system used for ventilation cabinet and reagent cabinet which need local ventilation should be installed in the ceiling and exhaust to the outside wall 理化实验室：用于通风柜、试剂柜等局部排风要求的排风机组，设置在实验室吊顶内并通过外墙排出。
