论文部分内容阅读
珠江流域的西江、北江下游有思贤(?)沟通西北两江,(?)长约1200米,西端与西江连接,称西活口,活宽100余米,东端与北江连接,称北(?)口,滔宽约200米,滔中段最宽处约500米,最大水深约18米,(?)形两头小中间大,并略呈弯曲状。思贤(?)以下,进入珠江三角洲河网区见图1。
The Xijiang River and the Beijiang River in the lower reaches of the Pearl River have Sianxian (?) Communication with two rivers in the northwest (?), About 1,200 meters long. The west end connects with the Xijiang River. ) Mouth, tortuous about 200 meters, the middle reaches of the widest section of about 500 meters, the maximum depth of about 18 meters, (?) Shape two small middle large, and slightly curved. Si Xian (?) Below, into the Pearl River Delta area shown in Figure 1.