| 单词 | gravity dam |
| 释义 | > as lemmasgravity dam gravity dam n. a dam that resists the pressure of the water by its weight. ΘΚΠ the world > the earth > water > lake > pool > [noun] > artificially confined water > contrivance for impounding water > dam > types of mill-dam1182 warrant1406 pond head1465 coffer-dam1736 batardeau1767 gather-dam1768 frame dam1774 crib-dam1816 shutter-dama1884 suddc1900 needle gate1909 check-dam1936 gravity dam1940 1940 Chambers's Techn. Dict. 388/1 Gravity dam. 1957 Encycl. Brit. VII. facing p. 8 (caption) Solid masonry gravity dams. 1971 N. Smith Hist. Dams ii. 33 A gravity dam is in general a straight wall of masonry or earth which resists the applied water~pressure because of its sheer weight. < as lemmas |
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