Aeroliths are further subdivided into two classes: chondrites and achondrites.
陨石进一步细分为两类：球粒状陨石和无球粒陨石。
Meteorites generally fall into one of two categories—chondrites and achondrites.
陨石通常分为两类：球粒陨石（chondrites）和非球粒陨石（achondrites）。
It was the study of chondrites that allowed researchers to work out how old the solar system is.
研究者通过研究球粒状陨石而得出太阳系的年龄。
The diamond, SiC and graphite grains with isotopic anomaly of noble gas are separated from original residue of chondrites.
从球粒陨石的酸不溶残渣中分离出了携带有惰性气体同位素异常的金刚石、碳化硅和石墨颗粒。
The lithophile elements in ordinary and carbonaceous chondrite groups may display either chalcophile or siderophile nature in enstatite chondrites.
普通球粒陨石和碳质球粒陨石中的亲石元素在顽火辉石球粒陨石内显示亲铜或亲铁的性质。
Carbonaceous chondrites meteorites contain abundant organic materials as they have not been melted, and much of their original chemical composition remains intact.
碳粒陨星陨石包含大量的有机物，由于它们没被熔化，原来化学成分的大部分仍然完整无缺。
Krypton in today's atmosphere is somewhat heavier than solar krypton, and the krypton embedded in meteorites known as carbonaceous chondrites is even heavier than that.
氪在今天的大气层中比太阳能的氪更重一些，这些氪比埋入了陨星，也就是通常熟知的碳质球粒状陨石中的氪还有重很多。
Krypton in today's atmosphere is somewhat heavier than solar krypton, and the krypton embedded in meteorites known as carbonaceous chondrites is even heavier than that.
氪在今天的大气层中比太阳能的氪更重一些，这些氪比埋入了陨星，也就是通常熟知的碳质球粒状陨石中的氪还有重很多。
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