传统排风罩和气幕上吸罩是两种工作原理不同的局部排风设备。
The traditional exhaust hood and canopy hood with attached air curtain have different principles.
本文介绍普通化学实验室通风系统的设计，并对局部排风设备的几种主要型式加以具体分析。
Presents the ventilating system design of the chemical laboratory. Analyses several kinds of local ventilating devices.
本文介绍了宾馆类建筑中可利用的几种余热，主要讨论了排风热和设备散热的利用情况。
This paper introduces the waste heat available in hotel buildings and discusses the waste heat in exhaust air and the waste heat dissipated from equipments.
应用推荐