原硝基苯装置的蒸汽及冷凝回水系统用能不合理。
The steam and condensation backwater system of original nitrobenzene installation is unreasonable on energy using.
文章还介绍了国内当前凝结水回水系统及其补水系统的配置，及其对这些系统的改造方案和改造后的效果。
The paper also introduces several configurations of domestic condensate return water system and its make-up system, and their retrofitting schemes and results after retrofitting.
从现实生产情况看，循环回水管道施工常会遇到“输水不畅”问题，影响了给排水系统运行的效率。
From a practical production, cycle the backwater pipeline construction often encounter the "poor conveyance, affect the efficiency of the running water supply and drainage system."
主要论述了一次水加压直供空调水系统的形式、工作原理及工况分析；通过控制膜流状态确定溢流回水管管径；
The forms of primary flow pressurized direct connection of air conditioning system, operational principle and condition analysis are discussed.
小浪底水力发电厂清水供水系统分为清水池阀门控制系统和回水泵控制系统。
The clear water supply control system of Xiaolangdi Power Station includes a valve control system of the clear water pool and a cycle pump control system.
小浪底水力发电厂清水供水系统分为清水池阀门控制系统和回水泵控制系统。
The clear water supply control system of Xiaolangdi Power Station includes a valve control system of the clear water pool and a cycle pump control system.
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