The curved, steep head wall of a landslip scar or tafone (Matsukura and Tanaka (2000) Geografiska A 82, 1), of nivation hollows (Thorn and Hall (2002) PPG 26, 4), or of cirques (Hughes et al. (2007) Geomorph. 88, 3–4).
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。