本文介绍了物质与能量流动分析的主要观点、分析方法及其在经济领域中的应用情况。
This article introduced the main points, analysis methods of circulating analysis of matter and energy and its application in economy.
根据熔融碳酸盐燃料电池（MCFC）电堆内部物质能量流动分析得出的温度分布数学模型是一组偏微分方程组。
The mathematical model of the temperature distribution based on the analysis of material and energy flow in a molten carbonate fuel cell (MCFC) is a set of partial difference equation group.
根据生态系统的物质循环、能量流动和信息传递三大基本功能，分析了网络学习生态系统的功能。
According to an ecosystem'sessential function of substance circulation, energy exchanges and information transfer, the paper analyzes the function of E-Learning ecosystem.
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