Tsunamis travel as fast as jet aircraft in deep water, where they are spread over a far deeper water column and make for smaller and very gradual waves at the surface.
在深海水域，海啸的传播速度像喷气式飞机一样快，但在海面看到的波浪不大。
2
Next, the belieal columnar vortex get enough the vorticity supplied by the crosswise spread of the secondary jet flow to rotate stably.
同时，分流射流横向扩展继续为螺旋柱状旋涡提供足够的涡量，使其稳定旋转。
3
Aimed at the bottleneck problem in the spread and application of the abrasive suspension jet technology from abroad, a new technical equipment of abrasive suspension jet cutting was developed.