spheroidal tank

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 of a planet is its spheroidal boundary.
   行星的势力范围是其球形边界。
3. 3.The spheroidal shape of the spacecraft allows it to maneuver more easily.
   太空船的球形形状使其更容易机动。