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1、chondrules and chondrites───球粒和球粒陨石
1、In ordinary chondrites, there are nearly always small visible iron flakes.───在普通球粒陨石，几乎总是有明显的小铁片。
2、The CI chondrites are thought to have similar proportions of elements to those of the entire solar system.───CI球粒陨石被认为是与整个太阳系有着相似的元素比例。
3、or arrived as part of a late-accreting veneer of water-rich meteorites, similar to the carbonaceous chondrites that we see today;───另一种是来自一种后期聚集增生的富水陨星块体，与今天看到的碳质陨石相似；
4、To reach back, you need to look in the dust grains in chondrites, rather than at the chondrules.───如果是追溯太阳系形成之前，你需要研究球粒状陨石中的灰尘颗粒，而不是陨石球粒。
5、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。
6、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。
7、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）。
8、We compared what we found in Wild 2 to that found in a specific class of meteorites called "CI chondrites . "───我们把在“怀尔特2”中找到的东西同在一类称为“CI球粒陨石”的特殊陨石中发现的相比较。
9、It is a long-standing mystery, therefore, why CI chondrites have such similar proportions to the sun.───因此，为什么CI球粒陨石有着与太阳相近的（成分）比例，是个长久的谜团。
1、The carbonaceous chondrites not only are weaker but also vary greatly in strength.
2、These meteorites, called chondrites, are composed principally of silicate minerals, usually with some metallic iron and sulfides.
3、The lithophile elements in ordinary and carbonaceous chondrite groups may display either chalcophile or siderophile nature in enstatite chondrites.
4、The petrography and mineral chemistry of 6 unequilibrated ordinary chondrites collected from the Grove Mountains, Antarctica, were studied.
5、Aeroliths are further subdivided into two classes: chondrites and achondrites.
6、Most achondrites are very old, dating from im-mediately after the formation of chondrites, perhaps even overlapping that time.
7、These chondrites belong to three major groups that differ in their composition.
8、The diamond, SiC and graphite grains with isotopic anomaly of noble gas are separated from original residue of chondrites.
9、The H chondrites are most similar in composition to Earth.