| 单词 | coal stratum |
| 释义 | > as lemmascoal stratum coal stratum n. ΚΠ 1757 E. M. da Costa Nat. Hist. Fossils 168 This slate is found in the coal counties of this kingdom, and always forms a stratum just above the coal stratum in the places where found. 1830 J. F. W. Herschel Prelim. Disc. Study Nat. Philos. 45 Separated from the coal-strata by a series of interposed beds. 1991 S. F. Mason Chem. Evol. x. 116 The coal strata formerly termed the Coal Measures were gentrified as the Carboniferous system. 2001 Daily Mail (Nexis) 30 June 44 Going down its shafts, he got his first good look at the layers of rock on his way to the coal strata, laid down..between 290 and 310 million years ago. < 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。