The hydraulic jump is where smooth flow becomes turbulent.

水跃是平稳流动变成湍流的地方。

Hydraulic jumps are easy to see in features such as dams or rivers.

在大坝或河流等地物中很容易看到水跃。

The winds flowed up over the top and then plunged downwind so fast they caused something called a hydraulic jump.

风从山顶向上吹过，然后顺风而下，速度如此之快，以至于造成了一种叫做水跃的现象。