The mathematical model of cost prediction is established by analyzing cost composition and influence factor of generation fuel cost, and cost prediction is realized by computer program.
通过分析发电燃料成本的构成及影响因素，建立成本预测的数学模型，并用计算机程序实现成本预测。
Uses the constant market share model to analyze the influence factor of Chinese vegetables to Japan in the article.
本文以日本作为研究对象采用恒定市场份额模型分析中国蔬菜出口日本增长的影响因素。
Through analyzing the influence factor of profile adjustment, the BP network effect prediction model is established and optimized.
通过对影响调剖效果的因素分析，建立了BP网络效果预测模型并对其进行优化改进。
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