micrometeor是什么意思

n.=micrometeoroid

1、Micrometeors are tiny particles that burn up upon entering the Earth's atmosphere.
微小流星是进入地球大气层时燃烧的小颗粒。
2、The spacecraft's shield is designed to protect it from micrometeor impacts.
航天器的护盾旨在保护它免受微小流星的撞击。

微小的流星；小流星体