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.
结果表明：（1）三峡坝区河谷深槽是在三峡地区构造抬升过程中，水流顺构造裂隙强烈侵蚀下切而形成的；
Individual jet maxima are frequently found at the tips of deep low-pressure troughs.
某些急流其最大风速中心常发现位于深低压槽的底端。
After tearing out the existing feed pipes, stalls, troughs, and, the entire four foot deep foundation a giant shell remained.
撕裂了现有的进料管，摊位，槽和整个四英尺深基坑后仍然是一个巨大的贝壳。
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