| 单词 | rock-fill dam |
| 释义 | > as lemmasrock-fill dam rock-fill n. Engineering large rock fragments used to form the bulk of the material of a dam; frequently attributive, esp. in rock-fill dam. ΘΚΠ society > occupation and work > materials > raw material > stone or rock > [noun] > gravel, small, or broken stones > forming material of dam rock-fill1888 1888 Engin. News 28 July 70/3 The place of all places for the proper use of such a rock fill dam is where leakage is of no importance. 1911 Sci. Amer. 17 June 592 (caption) Characteristic rockfill across a creek. 1976 National Observer (U.S.) 19 June 4/1 The Interior Department's Bureau of Reclamation has been building dams, including 250 out of rock-fill and earth. 1997 Earth Matters Autumn 19/2 The dam will be a 205-metre concrete face rockfill dam, making it one of the highest rockfill dams in the world. < as lemmas |
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