陨石

Ureilite is a particular kind of achondrite. It has not only highly fractionated igneous characteristics, but also primitive chondritic properties.

橄辉无球粒陨石是一类特殊的无球粒陨石，既具有高度分异的火成特征，又具有原始球粒陨石的特征。

Classification of ordinary chondrite s based on mean Fa and Fs value of olivine and Low-Ca pyroxene respectively is effective.

格罗夫山普通球粒陨石在类型分布上，其比例和南极以及非南极普通球粒陨石有显著不同，说明可能存在相当数量的成对陨石。

In addition to the established groups,there are about ten unique chondrites or chondrite grouplets, and also numerous ungrouped irons and iron grouplets.

此外 ，还发现1 0个独特的球粒陨石、许多未分群的球粒陨石小群、铁陨石和铁陨石小群，它们也来自各自不同的母体。

The purpose of the work is to confirm the correlation between the subgroups of chondrite and the types of refractory inclusion through comparing the inclusion characteristics of Ningqiang with other CV chondrites, especially the Allende meteorite.

目的在于通过对宁强与其它CV陨石，尤其是Allende陨石难熔包体特征的比较，以确定球粒陨石类别与难熔包体类别之间的相关关系。

The Ningqiang carbonaceous chondrite is the first falling carbonaceous chondrite in China, The geochemical characteristics of the refractory inclusions in the meteorite including petrology, mineralogy and chemical compositions were studied by many kinds of scientific method such as optical microscopy, electron microprobe, and instrumental-activation analysis and so on.

宁强碳质球粒陨石是中国第一块降落的碳质球粒陨石。本工作采用了光学显微镜、电子探针、仪器中子活化分析等多种手段，对这块陨石难熔包体的地球化学特征（包括岩石学、矿物学及化学成份）进行了研究。

The ordinary chondrite Semarkona is the most unequilibrium LL3.0 type meteorite, which might be only weakly effected by later thermal metamorphism. Thus, the age of Semarkona is significantly important for the studying of the formation and evaluation of meteorite.

普通球粒陨石Semarkona是最小平衡的LL3.0型陨石，受后期热变质的影响很小，因此其年龄研究对反演陨石起源有重要意义。

Metamorphism generates feldspar through the devitrification of primary igneous glass and causes TL sensitivity to increase by a factor of ～10 5 in ordinary chondrites.

因此，TL灵敏度的测定已用作3型普通球粒陨石，CO、CV球粒陨石和钙长辉长无球粒陨石新的分类方法。

Stamper - the world's foremost deep core oil driller - and Stamper's roughneck team of drillers to land on the asteroid, drill into its surface, and drop a nuclear device into the core. On this heroic journey, they face the most physically and emotionally challenging conditions ever encountered ... to save the world and prevent ARMAGEDDON.

等一行七人，借助太空总署最尖端的设备和人力，将这队拉杂成军而又粗野难驯的钻油技工，在十数天之内训练成临时太空部队，分别乘自由号及独立号穿梭机登上正朝著地球迫近的陨石上，利用钻油技术凿破陨石表层，於核心位置设下核爆装置，以图炸毁陨石，破解地球的终极威胁，逆转这场惊天动地的绝世天劫！

The work involves two of the seven known "nakhlite" meteorites (named after El Nakhla, Egypt, where the first such meteorite was discovered), and the celebrated ALH84001 meteorite that some scientists believe shows evidence of microbial activity on Mars.

他们研究了七个知名的透辉橄无球粒陨石（根据陨石第一次被发现的地名命名，在埃及的 El Nakhla）中的两个和著名的ALH84001陨石（一些科学家认为这颗陨石反映了火星上的微生物活动）。

According to bulk chemistry, the ungrouped GRV 98003 is classified into IAB group, and the ungrouped Ujimqin as a unique iron of IAB iron meteorite complex.

根据化学组成，重新对这两个未分群的铁陨石进行了分类工作，其中将GRV98003铁陨石划分为IAB群，乌珠穆沁铁陨石划分为与IAB群相关的单独铁陨石。

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。