| 释义 |
limb2/lim/n. 1a Astron. a specified edge of the sun, moon, etc. 【天】(日、月等天体的)边缘 eastern limb 天体东缘； lower limb 天体下缘 b the graduated edge of a quadrant etc. (四分仪等的)分度弧 2 Bot. the broad part of a petal, sepal, or leaf 【植】瓣片，萼檐，叶的宽部 [French limbe or Latin limbus ‘hem, border’] |