spheroidal vibration

例句：

1. 1. The planet Mercury is known for its spheroidal shape.
   水星以其球形而闻名。
2. 2. The sphere of influence extends around the Earth's surface.
   影响范围围绕地球表面。
3. 3. The spheroidal shape of the spacecraft was designed to maximize speed and efficiency.
   太空船的球形设计旨在最大化速度和效率。