1. Micrometeoroids pose a potential threat to spacecraft in outer space.
微陨星对太空航天器构成潜在威胁。
2. The impact of a micrometeoroid can cause damage to satellite equipment.
微陨星的撞击可能会对卫星设备造成损坏。
3. Scientists study the composition and characteristics of micrometeoroids to better understand the dynamics of the solar system.
科学家研究微陨星的组成和特征，以更好地了解太阳系的动力学。