A clearing 300–400 km wide near the inner edge of the Cassini Division (which is not entirely empty but has ringlets and gaps within it). It was discovered in 1981 on images from Voyager 2 and named after C. Huygens.
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。