水洗采油期
flushed production period
水文中长期预报
Mid-long Term Hydrologic Forecasting
水体长期输运
the water’s long-term transport
水汽指标期望值
expectation value of water-steam quality index
水分敏感期
water requirement critical period
水分临界期
critical period of moisture
水电站长期优化调度
long-term optimal operation of hydropower stations
水电项目前期工作研究
Study on Prophase Work of Hydropower Projects
水稻移栽期
Transplanting period of rice
水稻生育期灌溉制度
irrigation scheduling of rice in the growth period