成本研究 meaning in Chinese

cost study

A conceptual design and cost study was made by tva for epa in 1968 .
1968年由TVA为EPA做了轮廓设计和成本研究。
Probing into tourism investment ' s fund raising cost research
旅游投资的筹资成本研究初探
Travel cost analysis of air transportation
航空运输的旅行成本研究
Study on the educational cost in the guilin college of aerospace technology
桂林航专教育成本研究
World grain pd and research of the grain pd cost continued
世界粮食物流与中外粮食物流成本研究续三

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