From the Latin pannus meaning ‘shred’, an accessory cloud term applied to ragged cloud either beneath or attached to another cloud, usually cumulonimbus, cumulus, nimbostratus, or altostratus. See also cloud classification.
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。