短語詞組短語navigation mark of periodical 期刊航標electronic navigation mark 電子航標Inland River Navigation Mark 內(nèi)河航標navigation mark positioning 航標定位navigation mark management modernization 航標管理現(xiàn)代化Virtual navigation mark 虛擬航標navigation mark regulation 航標整治navigation mark monitoring system 航標監(jiān)測系統(tǒng)visual navigation mark 目視航標 返回 navigation mark