求翻译：从上述实验数据和相关分析，可以得到最优工况：当t=1～1.5s时，Q=1～2L，P=0.02～0.03MPa。在此条件下，相对比较节水、节能，经实验研究发现，每次冲洗用水最多为2L时，系统一次冲洗就能满足卫生要求。是什么意思？

Correlation analysis of experimental data and from above, can get optimal conditions: when you t=1~1.5s, Q=1~2L,P=0.02~0.03MPa. Under these conditions, relatively water-saving, energy saving, by the experimental findings, rinse water at a time when up to 2L, a flushing will be able to meet the health requirements of the system.