downcutting
常見(jiàn)例句
- The deep troughs on the Three Gorges valley bottom are formed by river downcutting along the structurally zones on the background of regional tectonic uplift.
結(jié)果表明：（1）三峽壩區(qū)河谷深槽是在三峽地區(qū)構(gòu)造抬升過(guò)程中，水流順構(gòu)造裂隙強(qiáng)烈侵蝕下切而形成的； - Besides the above, oil reservoirs in member 9+10 of Yanan formation in Jurassic are controlled by vertical migration pathway generated by riverway downcutting.
另外，侏羅系延安組延9+10段油氣成藏還受到古河道下切形成垂向運(yùn)移通道控制。 返回 downcutting