The valve for gas chromatography or other instruments to adjust the carrier gas, auxiliary gas and other gas source gas flow size.

本阀门适用于气相色谱仪或其它仪器调节载气、辅助气和其它气源气体流量的大小。

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For the actuators with pneumatic diaphragms or air cylinders the matching flame-proof type electric-gas valve positioner shall be provided together with the valve.

执行机构采用气动薄膜或气缸执行机构的，随阀提供配套隔爆型电？气阀门定位器。

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Be responsible for maintaining gas pipe, valve and other accessories.

负责煤气主管道、阀门及辅件的维修保养。

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Fire crews said one man noticed a leaking valve on a gas cylinder used for cooking and managed to get everybody out with moments to spare.

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Mike Schaffner directs information technology for the Valve and Measurement Group of oil and gas products and services company Cameron in Houston.

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