气体每经过一次间隙和随后的较大空腔，气流就受到一次节流和扩容作用，由于旋涡损失了能量，气体压力不断下降，比容及流速均增大。
After each gas gap and then a larger cavity, a flow by reducing expenditure on the role and expansion, loss of energy due to the vortex, the gas pressure drop in both volume and velocity increase.
搅拌白用不厌；在保持空气流通的过程中，“轻轻”这一词也出现了不止一次。
Whiskings went on to the point of foaming or voluminousness, and the word "gently" featured often, keeping the airiness in.
结果表明：一次风率对煤粉气流的着火影响较大，而对出口处烟气温度、氧量以及飞灰含碳量影响较小。
The results illustrate that primary air ratio has a major effect on pulverized coal ignition and minor effects on gas temperature, oxygen concentration and unburned carbon at furnace exit.
航空喷气发动机燃烧室中广泛采用叶片涡流器来控制火焰筒的一次空气流量，并建立强回流区。
The blade-type swirlers have been used in many air engine combustors to control the primary airflow of flame tube and establish a strong recirculation zone.
改进后的干燥机，热空气流动均匀，废气热能合理回收利用，能一次完成干燥。
The air velocity of the improved drier is homogeneous and the waste gas and heat energy can be recycled reasonably, and the drying can be completed once.
作为一股高速射流，它对一次风气流起支撑作用，以防止炉壁结渣现象的发生。
As a high velocity air jet, it supports and straightens the primary air stream and thus prevents slagging on the furnace walls.
利用回流烟气加热一次风煤粉气流和提高一次风气流的煤粉浓度，都有利于锅炉燃烧的稳定。 开缝钝体燃烧器的设计综合考虑了回流加热和煤粉浓度局部富集。
Using recirculation flow to heat the primary air and increasing the concentration of pulverized coal in primary air really do good to boiler flame stability.
而过多杂质的掺入会导致氧化锌薄膜晶体质量下降，这可能是氨气流量更大时电阻率再一次增大的原因。
Moreover, high density impurities might be formed in the ZnO lattice as NH_3 flow rate increased further, which could induce degradation of crystal quality causing the increase in the resistivity.
而过多杂质的掺入会导致氧化锌薄膜晶体质量下降，这可能是氨气流量更大时电阻率再一次增大的原因。
Moreover, high density impurities might be formed in the ZnO lattice as NH_3 flow rate increased further, which could induce degradation of crystal quality causing the increase in the resistivity.
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