The proportion of the sky seen to be covered by cloud. Nowadays it is commonly measured in ‘oktas’ or eighths of the sky covered, but sometimes it is quoted as a percentage, or as tenths.
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。