subunderwriting,distribution

This linear goal programming model is an effective method to make product distribution decisions.

對模型解的分析為決策者提供了改變目標優先級情況下的可供選擇的最優方案 ,因此 ,線性目標規劃法是解決(產品)分銷決策的一種有效方法。

Based on analysis of the studies on runoff and sediment yield and hydrological effect in forest watersheds, major advances and problems are assessed and main trends of research in this field pointed out.

在大量分析國內外對森林流域產流產沙及其水文效應研究的基礎上 ,客觀地評價了該領域研究的重要進展和存在的問題 ,指出該領域研究的發展趨

Based on the information of 33 times rainfall,runoff and sediment yield at No 3runoff plot in Zizhou Tuanshangou watershed,the variation of rainfall and runoff-sediment yieldon slope surface under diffrent rain pattern are analyzed by using statistic method.

該文根據子洲團山溝３號徑流場（坡度２２°，面積６０ｍ×１５ｍ＝３００ｍ~２）３３次降雨產流產沙的過程變化情況，統計分析了不同類型降雨坡面產流過程中的降雨變化及產流產沙過程變化。

Modeling refinery operation scheduling with inventory management;

集成庫存管理的煉油廠生產排產建模