With an example of a section of air duct with a tee, analyses the existing problems when adjusting pipe diameter according to the pressure balance formula and the causes.
以一段带三通的并联风管为例，分析了根据该压力平衡公式调整管径时存在的问题及其原因。
2
The device is composed of an asphalt-conveying pipeline, an asphalt-spraying pipeline and a compressed air-conveying pipeline, which are connected together by a tee coupling;