“navigation aids”的概念、定义、翻译、参考文献-科学参考

单词	navigation aids
释义	navigation aids Encyclopedia 工学水上安全保障释 navigation aids航标设置于海上、海岸或江河的易见处，以特定的标志、灯光、音响或无线电信号，用以帮助船舶定位、引导船舶航行、表示警告和指示碍航物的人工标志。全称助航标志。
随便看	economic analysis of settlement or tial economic and cultural types Economic and Political Structures of Tang Dynasty economic and public services Economic and Social Council of the United Nations economic and social development strategy Economic and Technological Development Zone of Daqing Economic and Technological Development Zone of Harbin Economic and Technological Development Zone of Mudanjiang economic and technological development zone of Shuangyashan economic and technological development zone of Suihua economic anthropology economic assistance on divorce economic attribute of forest resources economic authority economic base economic base(foundation) determines the superstructure economic benefit economic benefit index system economic benefit of forest economic benefit of hydropower station economic benefits of resources economic benefits of soil and water conservation Economic Bill of Rights economic burden of disease

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。