1·It is very important to construct Pearl River drainage area economic belt.
珠江流域经济带的建设意义重大。
2·The fact that Yellow River is plenty of mud is the obstacle which drop irrigation is applied in the Yellow River drainage area.
黄河水的高泥沙问题，一直是滴灌技术在沿黄灌区推广应用的“拦路虎”。
3·Decisive measures must be adopted to prevent serious water pollution accidents from happening again in the Huai River drainage area.
要采取果断措施，防止淮河流域再次发生重大水污染事故。
4·Centering on Luoyang, the southern and northern areas along Yellow River are the origin of agriculture culture of Yellow River drainage area.
以洛阳为中心的黄河南北地区是中国黄河流域农业文明的起源地。
5·Jian Song demanded perfecting legal system establishment in the Huai River drainage area, and strengthening the degree of environmental protection law enforcement.
宋健要求完善淮河流域的法制建设，加强环保执法力度。
6·The water quality evolvement process in Yangtze River drainage area is believed as a complex network system, with having lots of nodes and correlating to the downflow.
长江流域水质演变过程可看成是一个具有多节点，向下流关联的复杂网络系统。
7·China's Yangtze River drainage area is the main producing areas of rapeseed, and Hubei province is truly the largest rape production and rapeseed commodity distribution center.
长江流域是我国油菜籽的主产区，而湖北是名副其实的全国油菜生产大省和商品油菜籽集散地。
8·Fen river is the second largest branch of Yellow river. Also it has the largest drainage area and is the longest river in Shanxi province.
汾河是黄河的第二大支流，也是山西省境内流域面积最大，流程最长的河流。
9·The six counties and city of the Drainage Area of Zuo River in Nanning District lie in the Karst area in southwest of Guangxi Province.
左江流域六县（市）地处桂西南喀斯特地区，区内农业资源和生产水平各有差异。
10·A drainage basin is the area where these tributaries collect rainwater. A river with all its tributaries is called a river system.
流域是支流蓄水的区域。一条河流连同它的全部支流一起，叫做水系。