A device incorporating an orifice that is used to control fluid flow rate or downstream system pressure.

包括一个喷嘴的装置。它用于控制流体的流量或下游系统的压力。

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The fluid surface forcing control system applied on counter pressure casting is built based on the combined digital valve as the main flow control component.

采用组合式数字阀作为主要流量控制元件，构建差压铸造液面加压控制系统。

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Variable displacement pump's control style has many ways, such as constant pressure, constant fluid, constant power, electrohydraulic proportional and load-sensing etc.

变量泵的控制方式有恒压力、恒流量、恒功率、电液比例和负荷敏感控制等。

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