...级蒸发冷却空调,一次空气,二次空气,冷却效率, [gap=943]Keywords：two-stage evaporative cooling air conditioning,primary air,secondary air,cooling efficiency, ...
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primary air fan 一次风机 ; 主送风机
primary air system 新风系统
primary air fan-coil system 风机盘管加新风系统
cold primary air fan 一次冷风机
PRIMARY AIR SEQUENCE 一次风控制
primary air heater 第一级空气预热器
Primary air fan PAF 一次风机
primary air piping 一次风管道
primary air-handling unit 新鲜空气处理机组
The creditable measurement of pulverized coal concentration in primary air is the basis of combustion optimization and safe operation of utility boilers.
一次风煤粉浓度的可靠测量是电站锅炉燃烧优化和安全经济运行的前提条件。
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.
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。
Exhaust emission of vehicle engines is one of the primary air pollution sources.
车用内燃机的废气排放是大气污染的主要污染源之一。
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