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。

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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。

youdao