lower reaches

基本解释

This natural-color image of the lower reaches of Big Thompson Canyon illustrates two of the three natural factors that contributed to the flood’s severity: steep terrain and sparse vegetation.
有利于形成这场汹涌洪水的自然因素有三条，这幅大汤普森峡谷下游的自然色图像展示出其中两者：陡峭的地形和稀疏的植被。
On Thursday, Xinhua said that rainfall along the middle and lower reaches of the Yangtze was down 40 percent to 60 percent from the average, with the totals being lower than at any time since 1951.
本周四，新华网报道说长江中下游流域的降水量分别比同期平均水量低40%到60%，是自从1951年以来同期任何时候总量最低的。
In the lower reaches, where the current slows, the natural accumulation of sediment in the riverbed has caused the river to change course often in the past.
在河流下游，由于流速变缓，泥沙（等沉淀物）自然而然地堆积在河床中，曾经造成黄河经常改道。

To further complicate matters, the Endangered Species Act requires the Corps to release enough water to maintain dwindling populations of rare mussels and sturgeon in the lower reaches of the two rivers.
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This time around, he has been looking for natural gas in the lower reaches of the Gulf of Mexico, a basin that was given up as exhausted just a few years ago.
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It also underlines the dilemma for Apple as it contemplates launching a phone product into the lower reaches of the market to capture revenue from people coming into the smartphone enabled mobile web.
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下游
Taoping and Tonghua. located in the lower reaches of Zagunao River in Aba of Sichuan Province, have settlements in a good state of preservation.
四川省阿坝州理县杂谷脑河下游的桃坪乡与通化乡的羌族聚落保存完整。