Geologists agree that the Sudbury impactor was at least eight kilometers ( about five miles ) across.
地质学家同意,造成 陨石坑 的外太空撞击物,直径至少八公里.
The Sudbury fullerenes contained helium with compositions similar to some meteorites and cosmic dust.
索德柏立富勒烯里的氦气同位素组成,与某些陨石、彗尘中的一样.
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