Estimated Effect of Bed Sediments and Sand Waves During Dry Season on the Safe Nautical Depth in the South Channel of the Changjiang River Estuary是什么意思_Estimated Effect of Bed Sediments and Sand Waves During Dry Season on the Safe Nautical Depth in the South Channel of the Changjiang River Estuary在线翻译_英语_读音_用法_例句