磨料水射流抛光
abrasive waterjet polishing
激光抛光技术
Laser polishing technology
X射线荧光光光谱
X-ray fluorescence spectrometry
DFB光纤激光水听器
DFB fiber laser hydrophone
傍河型地下水水源地
riverside groundwater resource field
城市节水水平
the level of city water-saving
城市节水水平综合评价
Comprehensive Assessment of Urban Water Saving Level
充泄水水力特性
filling and emptying hydraulic characteristic