After that the relative position of cities on main river changed.
后来主要是干流城市相对地位的变化。
Continental Portugal is split in two by its main river, the Tagus (Tejo).
塔霍河(特茹河,Tagus)将葡萄牙分为两部分。
The main river closure is one of key techniques for the Three Gorges Project.
长江三峡工程大江截流是三峡工程的关键技术之一。
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