It is said long ago there appeared a devil of plague in the Ruhe River.

据说，很久以前在汝河有瘟魔出现。

They leave in mosquito in account, Xu spray to smoke, make its red smoke Feiming, as Albatron crane concept of cry of a crane, Guo Ruhe cloud, contented with.

又留蚊于素帐中，徐喷以烟，使其冲烟飞鸣，作青云白鹤不雅，果如鹤唳云端，怡然称快。

Giving an example about the groundwater system of the shallow of the Henan Ruhe middle reach, this paper has mainly introduced a numerical model of optimal development of the groundwater system.

本文以河南汝河中段河谷浅层地下水系统为例，重点介绍了一种地下水系统最优开采数值模型。