数字化水位记录
digital records of well water level
数字-数字数据变换器
digital-to-digital data converter
超声波数字水位计
ultrasonic digital water level gauge
带正负号数字数字系统
signed digit number system
感应式数字水位传感器
induction digital water-level sensor
全数字化数据存储
total digital data storage
数字化水电站
digitized hydropower plant
数字化水深测量
Digital water depth surveying