| 单词 | top rock |
| 释义 | > as lemmastop rock top rock n. Coal Mining the uppermost stratum of (hard) rock.ⓘ ΘΚΠ the world > the earth > minerals > mineral deposits > features of stratum or vein > [noun] > material above > above coal roof1575 wark1707 top rock1803 wash1882 1803 J. Plymley Gen. View Agric. Shropshire 56 Top-rock 7 yds. 0 ft. 0 in. 1879 G. F. Jackson Shropshire Word-bk. at Coal-field Soil,..Clay,..Loose Rock,..Coal,..Blue Clod,..Red Clunch,..Top Rock,..White Clod,..Brown Clunch. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。