free-jet stream

例句：

1. 1.The free-jet stream is responsible for the formation of clouds.
   自由喷射流负责云的形成。
2. 2.The free-jet stream can carry a lot of energy and influence weather patterns.
   自由喷射流携带大量能量，影响天气模式。
3. 3. In the free-jet stream, the air is moving very fast and it's difficult to see anything.
   在自由喷射流中，空气流动非常快，很难看到任何东西。