提出降雨量和蒸发量生产保证率和环保保证率两个设计参数。
1·The parameters mean the evaporation capacity or the volume, pressure, and temperature.
介质参数是指蒸发量或容积、压力、温度。
2·The amount of evapotranspiration of farm land can be calculated by multiplying the largest possible evaporation capacity of water surface with a special coefficient.
用它计算的水面最大可能蒸发量乘以一定系数，便可换算成农田蒸散量。