闸前闸后的水流条件不同，其影响流量的因素也不同。
Distinguishing the flow condition in the gate shaft is good for people to know and adopt the discharge coefficient of the plat gate.
闸前闸后的水流条件不同，其影响流量的因素也不同。
Distinguishing the flow condition in the gate shaft is good for people to know and adopt the discharge coefficient of the plat gate.
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