水平土柱实验
Horizontal soil-column experiment
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
地基土水平基床系数
horizontal coefficient of subgrade reaction
负水柱法
Negative water column technique
供水水平
amount of water - applied
irrigation rate
黄河水利委员会天水水土保持科学试验站
Tianshui Soil and Water Conservation Station of Yellow River Committee
农田灌溉节水水平
the level of water-saving agricultural irrigation