Based on the analysis of navigation benefit, this paperpoints out the problems existed and the necessity of the raise of the Three Gorges Reservoir's impoundment level.
Based on the analysis of navigation benefit, this paperpoints out the problems existed and the necessity of the raise of the Three Gorges Reservoir's impoundment level.
文章对此作了概略分析，并指出存在问题和及时抬高三峡水库蓄水位的必要性。