trochoidal mass spectrometer

例句：

1. 1. The trochoidal shape of the planet is fascinating.
   行星的扭曲形状令人着迷。
2. 2. The trochoidal arrangement of the molecules in the liquid is important for its properties.
   液体中分子的扭曲排列对其性质至关重要。
3. 3.The trochoidal structure of the galaxy is a puzzle that astronomers are still trying to solve.
   星系的扭曲结构是天文学家仍在试图解决的一个谜题。