1)master regulating control valve,主控调节阀2)main inlet control valve,主调节阀，主进汽控制阀3)main inlet control valve,主调节阀;主进汽控制阀4)main governor valve,主调节阀5)main steam control valve,主汽调节阀6)primary regulator valve,主调节器阀
用法和例句
This paper presents the manufacturing method for inner chamber of HP main steam control valve for 600MW turbine under current conditions.