middle reaches of a river

This iconic image of the crying porpoise, was captured by photographers at a reserve along the middle reaches of the Yangtze River.

这副形象的“哭泣的海豚”的影像，是一位摄影师在沿长江中游地区的保护区内抓拍的。

Folk art be called national treasures, especially in the middle reaches of Yellow River is located in Shanxi, a special human geography to create a unique arts and crafts here.

民间艺术堪称国宝，尤其在地处黄河中游的山西，特殊的人文地理造就了这里独特的民间工艺。

The interdecadal variation of rainfall intensity shows that the regional mean days of small precipitation and middle precipitation have a decreasing trend over the upper reaches of Yangtze River.

长江上游降水强度也存在年代际变化，区域平均的弱降水天数和中等强度降水天数都呈现减少的趋势。