| 单词 | coal slate |
| 释义 | > as lemmascoal slate coal slate n. slate which occurs adjacent to deposits of coal, often containing fossils. ΚΠ 1690 E. Lhuyd Let. 25 Nov. in W. Derham Philos. Lett. (1718) 239 The Figures of Plants in the Cole-slat I have formerly mention'd to you, is clearly a different thing from the Pictra Imboschata of Imperatus. 1797 Encycl. Brit. XVII. 522/1 The brownish blue friable steganium, usually called coal-slate. 1889 J. P. Lesley Dict. Fossils Pennsylvania I. 71 (caption) A small avicula found in 1857..in coal slate near the mouth of the Ravensdale tunnel. 2001 Jrnl. Arachnol. 29 346/1 The dump..consists of Tertiary tuff and coal slate and is sparsely covered with vegetation. < as lemmas |
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