Abstract : based on conclusion of practical experience from polymer flooding pilot test , and in combination with theoretical calculation and analysis of numerical simulation , the varying range of main production index by polymer flooding is determined , varying mode of liquid production , comprehensive water cut , oil production and incremental oil by polymer flooding is set up by adopting reservoir engineering method , forming simplified , fast and feasible method for calculating production index by polymer flooding , which provide practical and theoretical basis for making polymer flooding programe 文摘:本文在总结聚合物驱矿场试验实践经验和结合数值模拟理论计算分析的基础上，研究确定聚合物驱主要开采指标的变化范围，采用油藏工程方法建立聚合物驱采液量、综合含水、采油量和增油量的变化模式，形成简便、快速、实用的聚合物驱开采指标测算方法，为编制聚合物驱规划方案提供了实践和理论依据。
This article based on conclusion of expert system relevant concept and fundamental structure , analyses the knowledge representation , knowledge reasoning and intelligence decision and multi - dimension information multimedia inquiry as well . so , knowledge is transformed from simple text into sound , image and video data easily understood by agriculture technicians and peasants in order to impart knowledge and solve practical problems . at the same time , the article places great emphasis on multimedia system developing frame and application based on c / s mode as well as realization of this sophisticated system 本文在归纳总结农业专家系统的相关概念、基本结构及特点的基础上，分析了农业专家系统的多媒体知识表达、知识推理及智能决策，分析了基于多媒体表达技术的农业生产多维化信息咨询，使知识从单纯的文字变化到声间、图像、影像等直观易懂的声音、视觉情景，特别适应于广大农技人员和农民，达到传达知识，解决实际问题的目的。
A new kind of theory and calculating method which is suitable to cable supported bridges was developed in this paper . cable element can include the structure ' s geometry nonlinearity and initial stress , virtual laminated element has high calculating efficiency and good precision . dimensions of lsctb was put forward based on conclusions of optimum analysis 推导了适合缆索承重桥梁的缆索单元；引入虚拟单元理论，提出适用于大跨缆索承重桥梁钢箱梁的一种新方法?虚拟层合板单元法，该单元具有计算效率高，可以模拟复杂结构并满足工程需要等诸多优越性。
