Equations of transport model of leachate for porous media and double media are given. Generalized upwind scheme is used to solve the transport model of leachate and to eliminate numerical dispersion.

本文通过对淋滤液运移模型的研究，给出了多孔介质和双重介质淋滤液运移模型的定解问题，采用广义迎风格式求解淋滤液运移模型，消除数值弥散。

youdao

Based on analyzing the lettering annotation, the paper generalized its characteristics including subordination on position, dispersion on arrangement, hierarchy and classification on contents.

分析了地图注记的特点，认为地图注记在地位上具有从属性，排列上具有分散性，在内容上具有分类性与层次性。

youdao

For generalized linear and nonlinear models, it is still a conventional hypothesis that observed data should have nominal dispersion, otherwise statistical inference would be more difficult.

对于广义回归模型，人们也总是假设数据具有名义离差，否则，统计推断更加困难。

youdao