“retrogressive erosion”的概念、定义、翻译、参考文献-科学参考

单词	retrogressive erosion
释义	retrogressive erosion Encyclopedia 理学溯源侵蚀释 headward erosion; retrogressive erosion溯源侵蚀河床或沟谷、沟床纵剖面上任意点受流水作用向河（沟）下切向源方向延伸的现象。又称向源侵蚀。
随便看	Ascella ascend ascendant ascendant continued fraction ascendant subgroup ascending ascending and descending，floating and sinking ascending branch ascending central series ascending chain ascending chain condition ascending chain condition for left ideals ascending development method ascending difference ascending earth station ascending factorial ascending ideal series ascending induction ascending node ascending normal series ascending order ascending order of powers ascending phase ascending powers ascending power series

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