The stony meteorites are subdivided into two kinds: chondrites, and achondrites.

陨石和无陨石。

Chondrites contain chondrules, small grains of minerals.

陨石含有，即小颗的矿物。

Achondrites don't have chondrules in them.

无陨石中没有。

It turns out that the most likely source for Earth's water is a type of meteorite called a carbonaceous chondrite.

结果上的水最有可能的来源是一种叫做" 碳陨石" 的陨石， 陨石是一种陨石的类别名称。

The stone was of a type called a carbonaceous chondrite.

这块石头属于一种叫做碳陨石的类型。

The rocks are carbonaceous chondrites, one of the rarest types of meteorites, rich in carbon.

这些岩石是碳陨石，是最稀有的陨石类型之一，富含碳。

" Chondrite" is just the name given to the class of stony meteoroids that most commonly strike the Earth.

这种陨石常常袭击， 但是只有碳陨石带有水你从它的名称中也可以得知它们带有很多的碳， 它们之所以带有水。

One type of asteroid called a 'carbonaceous chondrite' contains water molecules, and also their raw ingredients, oxygen and hydrogen.

一种称为“碳陨石” 的小行星含有水分子，以及它们的原始成分氧和氢。

They said that they had found remnants of carbonaceous chondrites on the moon's far side in hyperspectral images in the visible and near-infrared range taken by the rover.

他们说，在月车拍摄的可见光和近红外范围内的高光谱图像中，他们发现了在月背面的碳陨石残留物。