xenon

例句：

1. 1.Xenon is a rare gas that has been used in various applications, such as lighting and arc welding.
   氙气是一种稀有气体，已被用于各种应用，如照明和电弧焊接。
2. 2.Xenon is also known for its ability to dissolve in water, making it useful for cleaning and purification purposes.
   氙气也因其在水中的溶解能力而闻名，因此被用于清洁和净化目的。
3. 3. In the field of astronomy, xenon is often used as a tracer gas to study the movement of stars and planets.
   在天文学领域，氙气常被用作示踪气体，以研究恒星和行星的运动。