vortex hypothesis

例句：

1. 1.The scientist proposed a vortex hypothesis to explain the phenomenon.
   科学家提出了一个涡旋假设来解释这一现象。
2. 2. The vortex hypothesis has been widely accepted by the scientific community.
   涡旋假设已被科学界广泛接受。
3. 3.The vortex hypothesis suggests that the Earth's magnetic field is generated by the rotation of its core.
   涡旋假设认为地球的磁场是由其核心的旋转产生的。