5[单选题] 节流阀的作用是用来 A.截断和导通流体 B.调节流量 C.控制气流压力 D.控制和调节流量、压力 - 查题网

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河南成教 / 燃气燃烧与设备

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5[单选题]
节流阀的作用是用来

A.截断和导通流体

B.调节流量

C.控制气流压力

D.控制和调节流量、压力

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燃气燃烧与设备

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