rill例句

A ditch diverted water from the rill into the fields.
一条沟渠把水从河里引向田间.

From a practical standpoint, rill erosion forms small channels.
从实用的观点看, 细沟侵蚀能形成很小的渠槽.

The surface shows deep rill - like folds.
表面有深沟槽 状 起伏褶皱.

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