The North Channel entrance bar at estuary has a natural water depth of about 6m, and the section with a water depth of l......

通过对灌河口上海和外海来水沙量及外航道历史演变的分析，表明新沂河汇共泽藻河口的河床有较大影响，上游各支流的下泄量较小，外海的来......