If flow requirements fall outside the capacity of a single valve, an additional smaller valve installed in parallel may be required.
如果流量要求超出单个阀门的空穴区外，则可能需要并联安装一个较小的附属阀门。
When more than one feed opening is required, the flow rate of each feed inlet must be carefully adjusted so as not to exceed the total capacity of the conveyor.
当需要开启一个以上进料口时，必须小心地调节限制每个进料口的流量，以使其总量不要超过输送机的设计能力限。
When more than one feed opening is required, the flow rate of each feed inlet must be carefully adjusted so as not to exceed the total capacity of the conveyor.
当需要开启一个以上进料口时，必须小心地调节限制每个进料口的流量，以使其总量不要超过输送机的设计能力限。
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