调节阀

ZT－B型系列焊接式真空流量调节阀是改变管道内截面积大小达到调节流量目的。适用溴化理冷热机组管道。

down-regulating；down-regulation

self-regulating

feedback arrangement, internal with particular characteristic in regulating systems

pressure regulating valve

alternating current/voltage regulation using transformer regulating in quadrature

P.D. regulating device with centrifugal governor, exerting an acceleratory effect

self-regulating arc welding transformer【电】

speed governor (speed regulator, speed-regulating device)