水与土
水与土-
主要是中国作为传统的农业社会，水与土是这个社会中不可分割的两个基本要素。
As the traditional society of China is an agricultural society , earth and water are basic elements .
-
运用水射流理论与土力学理论，建立了水射流土层扩孔方程。
The equation of soil bore enlarging with water jet was established based on the water jet theory and soil mechanical theory .
-
文中还从孔隙水平衡方程出发，阐明了非饱和土导水系数与土水作用力系数之间的关系。
Based on the equilibrium analysis , the factor of the interaction force between soil water and soil particles is given in the paper .