a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere 同义词：micrometeorite, micrometeor,
例句与用法
1.
Damage effect of micrometeoroid on zro2 coating 2涂层的损伤效应
2.
The inflatable spars , for example , will not remain rigid for long because of the inevitable micrometeoroid impacts 举例来说，可膨胀伸出的帆桅，由于无法避免微流星体的撞击，因此无法长久保持坚硬的状态。
3.
In 1994 , scientists studied a tiny crater formed by the impact of a carbonaceous micrometeoroid on an aluminum panel of a spacecraft to find signatures of c60 and c70 在1944年，科学家从研究由碳分子组成的微陨石体撞击太空船的铝板时所造成的细小陨石孔，发现碳- 60及碳- 70分子。
4.
Fullerenes in space in 1994 , scientists studied a tiny crater formed by the impact of a carbonaceous micrometeoroid on an aluminum panel of a spacecraft to find signatures of c60 and c70 在1944年，科学家从研究由碳分子组成的微陨石体撞击太空船的铝板时所造成的细小陨石孔，发现碳- 60及碳- 70分子。
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