| 单词 | earth dam |
| 释义 | > as lemmasearth dam earth dam n. a dam in the form of an embankment of compacted natural materials such as soil and gravel, often with a core or lining of impermeable material such as clay puddle or concrete; cf. earth-fill dam n. at earth fill n. Compounds. ΚΠ 1802 Explan. Plan Improvem. Harbour Bristol (City Corporation) 3 An Earth Dam across the Avon at Canon's Marsh, to be formed from the Earth excavated from Canon's Marsh. 1920 A. W. Grabau Textbk. Geol. xv. 398 By the final overflow of the lake-water, and the accompanying destruction of the earth dam, disastrous floods may sweep the valley below. 2007 M. Parker Panama Fever xxiv. 441 The principle of earth dams is based on the fact that most clays are impervious. < as lemmas |
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