| 单词 | sag pond |
| 释义 | > as lemmassag pond sag pond n. a pond whose basin is the result of earth movement associated with a fault. ΘΚΠ the world > the earth > water > lake > pond > [noun] > other brick pond1735 sag pond1933 1933 Calif. Jrnl. Mines & Geol. 29 197 Numerous little water-holding depressions known as sag ponds mark the site of local subsidences. 1974 Gribbin & Plagemann Jupiter Effect x. 114 And yet in the San Francisco Peninsula, where memories of 1906 should prompt some caution, lines of so-called sag ponds, which geologists use as a clear indicator of the fault line, have been filled in to make building land! < as lemmas |
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