fluvial action造句

例句与造句

1. Mars is a different planet, obviously, and the biggest difference is the lack of fluvial action, the lack of water working on the surface ."
2. Sometimes it also refers to the fluvial action of rainwater flowing in a stream channel, including a flood, known as a "'pluvial flood "', that is the direct result of excessive precipitation.
3. It's difficult to find fluvial action in a sentence. 用fluvial action造句挺难的