suction fan

The principle used in the utility model is that the phototatic insects are suck in the web with the suction by the fan and then killed.

其基本原理是利用风扇的吸力将飞来趋光的害虫吸进网袋内集中消灭。

In partly-ducted axial flow fan system with bellmouth, blade tip vortex formed at blade leading edge is generated by pressure gradient between suction side and pressure side, it develops downstream and into flow passages as blades rotate.

含导风罩的部分管道式轴流风扇系统，在叶轮前缘由于吸力面和压力面压差产生叶尖涡，随叶轮旋转往下游和流道内部发展。

Comparsion of Performance Test Axial Force and Thrust of Single-suction Centrifugal Fan

单吸式离心通风机轴向推力及止推性能试验对比

Some suction is provided by the ejector scrubber and the tail gas fan.

喷射洗涤器和尾气排风机可提供部分吸力.

Suction style means the fan is situated behind the bag house, which works at negative pressure.

吸入式风机位于除尘器之后, 除尘器为负压工作.

Some suction is provided by the ejector scrubber and the tail gas fan. Study on the flue gas spray and wet enhancement technology in the flue of a boiler end part

喷射洗涤器和尾气排风机可提供部分吸力。锅炉尾部烟道直接喷水调质技术的研究