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canyons; gorges; gulches; ravines | |||
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canyon; gores; gorge; gulch; ravine; chasm; gully | |||
gulch (US); crevice; beam; bar; joist; baulk; girder | |||
gap | |||
box canyon; coulee | |||
chine; defile | |||
abyss | |||
canyon A long deep, relatively narrow steep-sided valley confined between lofty and precipitous walls in a plateau or mountainous area, often with a stream at the bottom; similar to, but largest than, a gorge. It is characteristic of an arid or semiarid area (such as western U.S) where stream downcutting greatly exceeds weathering | |||
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on the ravine edge | |||
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gill |
Schluchten : 17 短语, 5 学科 |
一般 | 3 |
农业 | 8 |
改善 | 3 |
环境 | 2 |
自然资源和野生动物保护 | 1 |