The differences between high pressurespray, lowpressurespray and high pressure pouring equipment for rigid polyurethane foam are simply introduced.
对用于硬质聚氨酯泡沫塑料的高、低压喷涂设备及高压灌注设备作了简单的比较和介绍。
2
The experimental investigation on the lowpressurespray characteristics of swirl pressure nozzle was carried out with the water as the working fluid of spray.
以自来水为喷淋介质,对旋流压力式喷嘴低压喷淋特性进行试验研究。
3
Spray towers are used when a lowpressure drop is required and the fluids involved might plug a packed bed.