aids to navigation on inland waterways是什麼意思、英文翻譯及中文解釋
aids to navigation on inland waterways
詞語: aids to navigation on inland waterways
解釋: 內河航標
詞典: 海運專業英漢詞典
aids to navigation on inland waterways 相關解釋
內河航標 aid to navigation on inland waterways;river beacon