| 单词 | surface crust |
| 释义 | > as lemmassurface crust surface crust n. ΚΠ 1814 Mem. Wernerian Nat. Hist. Soc. 2 i. 44 Where descents were more rapid, there in many places, the surface-crust of the lava had burst. 1849 J. Gray Earth's Antiq. ii. 53 The surface-crust of the Earth. 2005 J. Diamond Collapse (2006) ii. 92 Rocks make the soil moister by covering it..and replacing a hard surface crust of soil that would otherwise promote rain runoff. < as lemmas |
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