useful flow造句

The whole course has this insane but useful flow to it.
And the clients'rent payments, even if below market rates, are a useful flow of revenue, helping to keep incubators in business when subsidy sources dry up, she said.
When representing water he stood not just for the act of raining itself, but rather for the useful flow of the water after the rain, in the " wadi ", the Arabian watercourse which is dry except in the rainy season.
This versatility helps smooth out the feast-or-famine nature of film work, supplies a useful flow of cash and helps companies build technical expertise and flexibility, according to Scott Ross, president of Digital Domain, a large effects house in Venice, Calif . With 350 employees, Digital Domain produces CD-ROMs, makes commercials and works on theme entertainment attractions in addition to its film work.
It's difficult to find useful flow in a sentence. 用useful flow造句挺难的