束管中心水平面
central beam tube level plane
层拉平水平切片
horizontal slice of level flattening
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
存气水平管道
gas-existing horizontal pipe
单管水平串联跨越式
horizontal series one-pipe cross-over heating syst
电子束管水溶性外导电石墨乳
colloidal graphite for cathode tube external coating with liquid carrier
多准则多约束水平
multiple criteria and multiple constraint levels
供水水平
amount of water - applied
irrigation rate
国外水平管
horizontal pipeline abroad