电导液位计
electric conductance levelmeter
连通液位计
Connected liquid level meter
蓄水池液位控制装置
The Water Level Control Device in Water Pool
蓄电池电解液液位
battery electrolyte level
吸收塔液位控制阀
level control valve in absorber
推力矢量电液位置伺服系统
electro-hydraulic position servosystem of thrust v