煤气压差调节gas differential pressure control 利用气压差测高公式 barometric height formula ..
双语例句
1
Application Industrial gas system applications for safety shutoff, pressurecontrol, or differential-pressure control.
应用工业气体安全关断，压力控制或压差控制系统应用。
2
The C437D, E GasPressure Switches are pressure-actuated switching devices used in industrial gas system applications for safety shutoff, pressurecontrol, and differential-pressure control.