planetary cage

例句：

1. 1. The planetary cage is a fascinating concept that has fascinated scientists for centuries.
   行星笼是一个令人着迷的概念，科学家们已经对这个领域研究了几个世纪了。
2. 2. The planetary cage is a fascinating concept that has fascinated scientists for centuries.
   行星笼是一个令人着迷的概念，科学家们已经对这个领域研究了几个世纪了。
3. 3. The planetary cage is a fascinating concept that has fascinated scientists for centuries.
   行星笼是一个令人着迷的概念，科学家们已经对这个领域研究了几个世纪了。