How to evaluate the economic benefit of hydraulic engineering under operation that has not been considered in detail in present technique specifications.
关于已建水利工程经济后评价的问题，在我国现有的专业技术规范中都还没有详细叙述。
How to evaluate the economic benefit of hydraulic engineering under operation that has not been considered in detail in present technique specifications.
关于已建水利工程经济后评价的问题，在我国现有的专业技术规范中都还没有详细叙述。
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