chondrite

常见例句

Carbonaceous chondrite planetesimals were adsorbed on the mantle surface of the primitive earth, forming primitive carbon-rich areas.
碳质球粒陨石星子被吸积于原始地球上地幔表层，形成原始富碳区。
That is a necessary but not a sufficient condition, as the type of rock involved, called carbonaceous chondrite, is found in other asteroids, too.
他有两方面的证据：第一，现存的灾难性撞击的残骸与Baptistina和她的后代有相同的成分，这是必要条件，但并非充分条件，因为含碳的球粒状陨石在其它小行星上也有；
The large number of meteorites from Antarctica and the desert areas of Australia, Africa and North America changed the previous chondrite classification in recent years.
近年来在南极及澳大利亚、非洲和北美的沙漠地区发现和回收了大量的陨石，改变了以前的球粒陨石分类。

That is a necessary but not a sufficient condition, as the type of rock involved, called carbonaceous chondrite, is found in other asteroids, too.
ECONOMIST: Asteroid impacts
If the arrival was made of carbonaceous chondrite, it would have weighed 25 times as much as all the other carbonaceous chondrite material that had fallen over the previous half million years.
ECONOMIST: Paleoforensic science
Assuming that the figure was similar during the Cretaceous, it would be a long shot that the first fossil meteorite to turn up from 65m years ago was made of such a rock unless a huge extra supply of carbonaceous chondrite had suddenly arrived on the planet.
ECONOMIST: Paleoforensic science