Simultaneously, it provides the method to determine the best pressure of header system and optimum frequency of variable frequency pump based on the special working condition.
同时，给出了在特定工况下，确定最佳母管压力和变频泵最佳频率的方法。
Simultaneously, it provides the method to determine the best pressure of header system and optimum frequency of variable frequency pump based on the special working condition.
同时，给出了在特定工况下，确定最佳母管压力和变频泵最佳频率的方法。
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