这些太空岩石属于超大号“孤儿”：科学家一直以来都无法根据实验室中某块陨石来判断其究竟来自哪颗小行星，这种知识缺口被称为“小行星-陨石联系”问题。
The rocks are astronomical orphans: Scientists can’t connect meteorites in the lab to the asteroid in space that spawned it, a knowledge gap known as the asteroid-meteorite connection problem.
这些太空岩石属于超大号“孤儿”：科学家一直以来都无法根据实验室中某块陨石来判断其究竟来自哪颗小行星，这种知识缺口被称为“小行星-陨石联系”问题。
The rocks are astronomical orphans: Scientists can’t connect meteorites in the lab to the asteroid in space that spawned it, a knowledge gap known as the asteroid-meteorite connection problem.
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