长历时大雨
long duration heavy rainfall
长历时演变
long-term dynamic development model
短历时暴雨
short duration storm rainfall
多功能日历时钟
multifunction calendar clock
非线性历时分析
Non - linear time - procedure analysis
灌溉历时的均匀性
uniformity of irrigation duration
极限干旱历时
critical drought duration
极限水文干旱历时
critical hydrologic drought duration