进一步界定了环境水价的内涵，并给出其计算方法。
It defines the connotation of water price of environment and gives its calculation method.
其计算方法简便，且有良好的精度，可供生产设计使用。
These methods are very simple with good accuracy and can be used for designing arch Bridges in practice.
举例说明其计算方法和评价效果，提出了相关的可行性建议。
Example is given to illustrate calculation method and the evaluation result, and relevant feasible Suggestions are proposed.
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