通过采用空气自然对流冷却喷头、设置辅助火孔的方法，扩大了单火孔大气式燃烧器的负荷调节范围。
By means of natural convection air-cooling burner spray and auxiliary ports installation, the load regulation range of the atmospheric burner with single port is extended.
本文对百叶窗式叶片形成的倾斜通道，在制冷工程范围内变物性条件下，自然对流换热进行了数值预测。
This paper presents a numerical prediction of natural convection heat-transfer from inclined channels formed by slates of shutter with variable fluid-property in refrigerating engineering.
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