该模型由资源水价、工程水价和环境水价构成。
This model consists of water price of resource, water price of project and water price of environment.
水价构成中成本不实、水资源费和污水处理费比重偏低；
The proportion of fee to deal with wasted water and water resource is too low.
研究预计，更高的水价只会对农民的收入构成非常微小的影响。
It predicted that higher prices would have only a modest effect on farmers' incomes.
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