汽液两相流自调节液位控制器
vapor liquid two-phase flow self-regulated liquid level controler
automatic regulating steam-water level controller
自力式液位调节阀
self-operated level regulator
调节器位置指示器
damper position indicator
工作水位调节器
water level control system
锅炉水位调节锅炉水位调节器
boiler water level control
锅炉水位调节器
boiler water level regulator
速度电位器调节
speed potentiometer adjustment