Conclusion: The annual actual incidence rate of hepatitis was much higher than that reported. 结论:部队每年肝炎的实际发病率远高于报告发病率。
Decreasing of annual actual evapotranspiration is mainly due to decreasing of actual evapotranspiration in spring, summer, autumn, while decreasing level of actual evapotranspiration is also the largest amount in spring. 长江流域年实际蒸发量的减少主要是由于春、夏、秋三季实际蒸发量下降所致,其中春季实际蒸发量减少幅度最大。