电流传感器电压传感器光学计量单元
current transducerpotential transduceroptical metering unit
光电式液位传感器
photoelectric level transducer
光纤液位传感器
fiber optic liquid level sensor
Optical-fiber liquid level sensor
Optical fiber liquid level sensor
密封膜片容积式液位传感器
diaphragm sealed displacement transmitter
铂丝液位传感器
platinum wire liquid level sensor
光电液位传感器
Optoelectronic liquid-level sensor
光学位移传感器
optical displacement sensor
可变光栅模液晶光学传感器
variable grating mode liguid crystal optical transducers
浮式液位传感器
floating level transducer