material flow system analysis
material flow system analysis
物料流系统分析
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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By way of material flow analysis, this paper demonstrates resource consumption characters as well as dynamic trends of our country's economy system.
本文采用物质流分析方法描述了我国经济系统的资源消耗特征和变化趋势。
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