Two typical methods of HVAC testing adjusting and balancing were introduced basis on practical project: stepwise method and proportional balancing method.
本文以实际工程为背景，分析了两种常用空调风系统的调试方法：分步调节法和比例平衡法的优缺点。
The initial scan of the flow rate in all the valves in the system will determine the % Design Flow Rate (DFR) of each valve and consequently a procedure for proportional balancing.
系统内所有阀门的流动速率的最初纪录将决定每个阀门的%设计流动速率（DFR）以及随后的比例平衡程序。
The initial scan of the flow rate in all the valves in the system will determine the % Design Flow Rate (DFR) of each valve and consequently a procedure for proportional balancing.
系统内所有阀门的流动速率的最初纪录将决定每个阀门的%设计流动速率（DFR）以及随后的比例平衡程序。
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