本实用新型还可用于变容 真空泵和其它变量柱塞泵，实现对气体或液体流量的控制。
The flow control device is also applicable to positive displacement pumps and other variable displacement pumps to control gas flow or liquid flow.
本实用新型还可用于变容 真空泵和其它变量柱塞泵，实现对气体或液体流量的控制。
The flow control device is also applicable to positive displacement pumps and other variable displacement pumps to control gas flow or liquid flow.
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