| 单词 | head water mark |
| 释义 | > as lemmashead water mark head water mark n. now rare a mark showing the maximum water level attained or permitted in a particular body of water; esp. a maximum allowable level of headwater (sense 4a); the water level indicated by this mark; cf. high-water mark n. 1. ΘΚΠ the world > the earth > water > lake > pool > [noun] > artificially confined water > kept at a height > mark showing head water mark1846 headwater1895 1846 Bell's Life in London 12 Apr. 4/5 The well-known Calvey Brook..had been dammed up to head water-mark, and required a clear jump of 18 feet. 1894 Act 57 & 58 Vict. c. clxxxvii. §75 [They] shall..prevent the waters of the Thames being at any place above the level of any head-water-mark for the time being fixed. 1953 Times 10 Feb. 3/2 The maximum level of the Thames during the flood, as recorded at Teddington, was 3ft. 5in. above standard head water mark. < as lemmas |
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