The change of ephemeral gully headward erosion, gully-wall collapsing and deep-cutting erosion were quantified in the three stages of initial-phase, metaphase and anaphase.
阐明了在浅沟发育初期、中期和后期三个发育阶段，沟头溯源侵蚀、沟壁扩展和沟床下切侵蚀变化规律。
A little stream of Knowledge trickled slowly through a deep worn gully.
一条知识小溪从深壑幽谷中缓缓流过。
Then, when Westport was scarcely out of sight, as we were trying to cross a deep muddy gully - another feature of prairie experience that afterward became too familiar to us - the cart stuck fast.
接着，当西部码头还没有完全离开我们视线的时候，我们就得尝试着去穿过一条相当有深度的泥沟。
A deep mountainside gorge or gully, especially in the Swiss Alps.
岬角成了沙洲和浅滩，溪谷和山峡成了深水与湖峡。
A deep mountainside gorge or gully, especially in the Swiss Alps.
岬角成了沙洲和浅滩，溪谷和山峡成了深水与湖峡。
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