In the paper,on the basis of the two-dimensional flow model and by applying the finite volume method and unstructured mesh,the waterlogging and drainage of the Datong Lake-polder with different precipitations and floods were studied.

The masses city is a kind of fair city where space and environmental resources are used together by the masses.

As an intellectual,LU Xun was aware of the fact that the masses who stood in the way of innovations were an inseparable social whole.

This article analyses the structure of contemporary Chinese political culture that includes the elite s political culture and the masses political culture,and which may also be divided to socialistic ideology,traditional political culture and democratic political culture.

In a sense this is actually neglecting the masses.

During his lifetime for theoretical exploration the "masses" was distinctive.

Elitism,serving the mass,and reputation:provincial and county levelRTVUs search for excellence;

The love story especially the famous person s and the star s is the basic contents of the mass life periodical,by which satisfy the readers entertainment and curiosity mentality.

For this embarrassing fact that most tourism festivals can t be held again because few people like to participate after these festivals were held once or twice, the author points out that more participation of the masses is the key to solve the above problem.