wedge flow

例句：

1. 1.The water in the river is flowing through a narrow gap between two rocks.
   河水在两岩石之间的狭窄缝隙中流动。
2. 2.The wedge flowage has been causing problems for years.
   楔形流动多年来一直造成问题。
3. 3.The engineers were trying to figure out how to control the wedge flowage.
   工程师们试图弄清楚如何控制楔形流动。