... primary water 一次水；一回路水 primary water pump 主泵，一次泵 primary water purification plant 一次水净化装置；一回路水净化装置 ...
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7 hr 30 min Even after operators pump water into the primary loop, pressure is still high.
7小时30分钟尽管操作员已将水抽入主回路，但温度仍然很高。
7 hr 30 min Even after operators pump water into the primary loop, pressure is still high. The PORV 'backup valve is opened to lower the pressure.
7小时30分钟尽管操作员已将水抽入主回路，但温度仍然很高。减压阀的备用阀门被打开，减少压力。
Analyses the effects of variable flow operation of primary pump water systems based on the temperature difference control method on the operation of air conditioning systems.
分析了一级泵水系统采用温差控制法实现变流量运行对空调系统运行的影响。
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