| 单词 | headward erosion |
| 释义 | > as lemmasheadward erosion headward erosion n. Physical Geography erosion by a stream of its bed in the upstream direction, so that a valley, ravine, etc., becomes longer. ΘΚΠ the world > the earth > structure of the earth > formation of features > erosion or weathering > [noun] > headward erosion headward erosion1895 1895 W. M. Davis in Geogr. Jrnl. 5 130 While the original consequent streams are..degrading their valley lines, lateral branches will be developed by headward erosion. 1944 A. Holmes Princ. Physical Geol. ii. x. 153 The torrent tract..evolves into the valley tract, and each gradually migrates inland as the source continues to recede by headward erosion. 1995 A. M. Cvancara Field Man. Amateur Geologist (rev. ed.) ii. 16 A drainage system of a main stream and its tributaries gradually extends upslope toward a drainage divide..by headward erosion. < as lemmas |
| 随便看 |
|
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。