研究结果认为：在燃气喷口两侧布置两个矩形空气喷口的烧嘴，氮氧化物排放量低于圆形空气喷口烧嘴；
The results show that NOx emission was abated when the nozzle with two circle air jet was converted into the nozzle with two rectangular air jet.
在实验中，主要通过调整一次空气系数和引射器喷口的大小，达到稳定燃烧的运行工况。
In experiment, steady operating point of combustion can be obtained mainly by setting primary air factor and the size of spout.
烤烟烟草同样喷口加热的空气通过的烟草，以加速固化。
Flue cured tobacco similarly vents heated air through the tobacco to accelerate curing.
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