【机械工程】调节,控制，冷却液流量

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

self-regulating arc welding transformer【电】

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

anti-hunting arrangements in regulating systems