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是什麼意思_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在線翻譯_英語_讀音_用法_例句