The outermost of Neptune’s rings, named after J. C. Adams. It lies 62 930 km from Neptune’s centre and is about 20 km wide. It contains four denser sections, or ring arcs, named Courage, Liberté, Egalité, and Fraternité.
科学参考收录了60776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。