存在问题是技术自选和自由自选动作的水位质量不如日本队；
The existing problems are as follow:the quality of water level of optional technology and optional movement is not as good as opponent team.
水位下降时，饱和理论比饱和—非饱理论计算的渗流自由面下降要快。
When the water level is falling, the free surface line of saturate theory is lower than saturate-unsaturated.
利用所编写的非稳定渗流计算程序，计算土石坝上游水位变化时自由面位置随时间的变化规律、孔隙水压力的分布情况。
The program is utilized to calculate soil rocks dam free surface position variation and pore-water pressure distribution condition with time when the up water level position changed.
应用推荐