Therefore, double screw compressor and worm compressor compared, in the same speed of the units inside less number of exhaust air ripple, big air flow noise.
因此，双螺杆压缩机与蜗杆压缩机相比，在相同转速下单位内排气次数少，气流脉动大，气流噪声大。
The structure of the building allows a number of natural air flow paths, giving rise to a rather complex ventilation strategy.
建筑的结构允许许多自然通风通道，它们导致复杂的通风策略。
The model inputs include the fuel flow, the nozzle area, the altitude and Mach number, and model outputs include the rotor speed, the temperature and the air pressure.
模型的输入量包括燃油流量、喷口面积、高度及马赫数，输出量则包括高、低压转子的转速及各截面的温度和压力。
The effects of swirl number of primary swirler and radial swirler, area ratio and sleeve divergence angle on the cold flow field of double swirl air intake were investigated.
试验研究了主、径向涡流器旋流数、面积比、套筒扩张角等参数对双旋流进气装置冷态流场的影响。
This turbulence caused the flow pattern in the tunnel to be similar to the flow pattern in free air at a higher Reynolds number.
这种紊流使风洞内的流谱与在较高的雷诺数下自由气流中的流谱相似。
The flow friction coefficient increases with the increase of the cooling air Reynolds number and decreases with the rotating Reynolds number.
阻力系数随旋转雷诺数的增大而减小，随冷气雷诺数的增大而增大。
The measures to control the vapor purging time and flow rate of vapour, enlarge the oil-gas space and increase the number of air hole as well as venting area are given, which can effective...
提出采取严格控制扫线作业时间和扫线蒸汽流量，增大油气空间的体积和增加罐顶通气孔数量和面积等措施，可有效地预防该类事故的发生。
Meanwhile, the variation regularity of ventilation and cooling number with wind speed at different flow rates air similar illustrate the conclusions of generality.
同时，通风量及冷却数随外界侧风风速的变化规律在不同的流量下相似，说明所得结论具有通用性。
Meanwhile, the variation regularity of ventilation and cooling number with wind speed at different flow rates air similar illustrate the conclusions of generality.
同时，通风量及冷却数随外界侧风风速的变化规律在不同的流量下相似，说明所得结论具有通用性。
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