陨石

All 23 meteorites studied belong to ordinary chondrites.

系统的研究确定这些陨石均为普通球粒陨石。

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。

According to SiO2 ,∑FeO, MgO and CaO content distribution in the histograms, chemical groups of the 23 chondrites were tentatively divided.

应用陨石中SiO_2、∑FeO、MgO、CaO的含量进行图解对比，划分出陨石的化学群，取得了初步的结果。

On the other hand we also found minerals that seem to be less consistent with CI chondrites and IDPs, and more consistent with yet other classes of meteorites.

另一方面我们也发现与 CI 球粒陨石及 IDPs 似乎不怎么相符，倒是与其它类型的陨石更相合的矿物。

At present there are thirteen well-established chondrites,seven different parent bodies that experienced high temperatures and pervasive melting,and twelve main iron meteorite groups.

本文主要依据现有的资料综述陨石分类，以及来自小行星带、月球和火星等不同类型陨石的宇宙射线暴露年龄及其宇宙化学意义。

The others include 1 martian meteorite, 1 HED meteorite and 6 L3 ordinary chondrites. These 20 equilibrated ordinary chondrites are classified into chemical groups of H, L and LL, respectively, based on mean Fa content of oli-vine, mean Fs of low - Ca pyroxene and abundance of Fe-Ni metal.

根据橄榄石的平均Fa值、低Ca辉石的平均Fs值和Fe-Ni金属含量将这20块陨石分别划分为H、L和LL等化学群；根据球粒结构、基质重结晶程度和矿物成分对这些陨石进行岩石类型的划分。

Short-lived radionuclides and long-lived isotope systems are normally used to date chondrites; the former systems can provide only relative ages while the later can provide absolute formation ages of chondrules, in contrast.

陨石年代学研究中常用定年工具包括短半衰期和长半衰期放射性同位素体系，其中前者可以给出陨石形成的相对年龄，而后者则可以给出绝对形成年龄。

The shockwave of the meteorite strike on the terrane of the surface passes the dynamic energy to the surface and forms the target terrane shatter cone; due to the fact that the terrane of stricken surface can not maintain the state of stress, a cluster of rarefaction wave was formed behind the shockwave to decompress terrane substances from high pressure state, this cluster of rarefaction wave ejects with high speed from the interface between the substances such as meteorite, surface terrane and lava, the shockwave compresses the target terrane substances, generating super-high temperature and forming a jet current of rock mass, rock powder, lava or rock fog with high pressure and temperature, the jet current lasted until the shockwave rebounded from the backside of rock, and the target of meteorite-stricken surface is formed on surface.

陨石撞击地面岩层时的冲击波把动能传给地表产生靶岩震裂锥，由于被撞击地表岩层不能维持应力状态，冲击波后面就发展一簇稀疏波使岩层物质从高压状态下减压，在陨石、地表岩层、熔岩等物质交界处高速喷出，冲击波压缩靶点岩层物质产生超高温，成为压力大温度高的岩块、岩粉、熔岩或岩雾喷射流，直到冲击波从岩石背侧反射、地面上形成陨击靶点。

Since merle is an easily recognized color, this sort of breeding combination can be avoided; don't breed two merles together!

陨石是非常容易辨别的颜色，因此在繁殖者的组合配对中应该避免用二只陨石相配。

In Sable Merles the merle pattern is actually only visible in pups. Later on the effect is nearly invisible.

在Sable的陨石中，其陨石形式只在小时可见，长大后会变化成几乎不可见。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。