Proper, scientific study of the impacts of dams and of the costs and benefits ofcontrolling water can help to resolve these conflicts.
请问:句中的四个of该如何分析?
翻译:恰当地讲,对蓄水的水利工程大坝的影响、成本和收益的科学研究有利于这种冲突的解决。
1)study of 后面带了impacts、costs and benefits三个介宾。
2)the impacts of dams 中dams是the impacts的定语。