effect of wind and waves on navigation safety on hongze lake 風(fēng)浪對(duì)洪澤湖區(qū)航行安全的影響
the evaluation of navigation safety of ships in heavy sea 大風(fēng)浪中航行船舶非事故性損失的定量分析
article 4 . vessels and their major equipment relating to navigation safety must have valid technical certificates issued by vessel inspection departments 第四條船舶和船上有關(guān)航行安全的重要設(shè)備必須具有船舶檢驗(yàn)部門簽發(fā)的有效技術(shù)證書。
vessel traffic service has made a valuable contribution to navigation safety, cost-efficient transportation and the protection of marine environment vts對(duì)各國港口或水道在減少船舶交通事故、提高船舶運(yùn)營效率及防止水域污染方面起到了重要作用。