查询词典 meteorites

The outer, non-metallic layers of the planet form what are known as achondrite stony meteorites, and there is a separate class of stony-irons that come from the boundary between inner core and outer layer.

位于行星外部的非金属层形成无球粒陨石石质陨石，在内核和外层之间还存在有一层独立的石质铁层。

The small amount of argon loss that has apparently taken place in these meteorites is remarkable.

明显发生在陨石上这微小的一部分氩气的损失是很有意义的。

The site also contains images and photomicrographs of meteorites and impact craters. There is a comprehensive bibliography and glossary of terms, and list of Arizonan meteorites. The site is available in English and Spanish.

该站点提供了陨石以及陨石坑的图片和显微照片，另外还有一些内容广泛的文献索引目录以及亚利桑那州的陨石介绍列表，该网站有英语和西班牙语两个版本。

Among the investigated meteorites, Dong Ujimqin Qi, Weiyuan mesosiderites and Ningbo iron meteorite were recovered in China, and Rafruti ataxite was found in 1886 in Switzerland.

在所研究的4个陨石中，东乌珠穆沁旗、渭源{类型Ⅲ中铁陨石及宁波铁陨石是在中国回收的，另一个无结构铁陨石Rafruti是于1886年在瑞土发现的。

There is an introduction to Mars meteorites, and detailed descriptions of individual Mars meteorites. Each document about the individual meteorites contains all existing information such as petrography, whole rock and mineral chemistry, radiogenic, cosmogenic and stable isotope data and weathering.

该站点详细的介绍了火星陨石及其各自的具体特点，这些以PDF格式保存的档案文件包含了岩石记述学、岩石和矿物化学、射电数据、宇宙测年数据、稳定同位素数据等。

Meteorites, chondritic meteorites, meteorite composition, meteorite structure, impact craters,carbonaceous chondrites, glossary

关键词：陨星；球粒状陨石；陨星组成物；陨星构造；撞击弹坑；碳质陨石；术语表

Of 685 meteorites published in the Meteoritical Bulletin Database,there are 2 martian meteorites,2 eucrites,6 ureilites,5 mesosiderites,1 pallasite,1 iron,and 10 carbonaceous chondrites.

在正式公布的684块已分类陨石中，鉴定出2块火星陨石、2块灶神星陨石、6块橄辉无球粒陨石、5块中铁陨石、1块橄榄陨铁、1块铁陨石以及10块碳质球粒陨石等特殊样品，并对其中的部分样品开展了深入的研究。

But, for the Type 3 of unequilibrated meteorites, its difficult to determine their chemical groups exactly as the mineral composition varies in a large range and probably there is water in the meteorites.

对于岩石类型为第3类的非平衡陨石，由于矿物成分变化较大，并可能有水等易挥发成分的存在，其化学群的划分不易确定。

The chemical-petrographic types of these meteorites are presented below.Six are unequilibrated ordinary chondrites,including three H3 and three L3;92 meteorites are equilibrated ordinary chondrites,including 24 H-group(13 H4,10 H5,1 H6),64 L-group(2 L4,44 L5,18 L6) and 4 LL-group(3 LL4,1 LL5);the other two belong to stone-iron meteorites.In 6 unequilibrated ordinary chondrites,chondrules are well-shaped,and olivine and low-Ca pyroxene are commonly zoned and have wide ranges of composition.The olivine and low-Ca pyroxene in the other 92 equilibrated ordinary chondrites have similar composition,respectively,and to some degree it reflected thermodynamics equilibration in olivine and lowCa pyroxene.

并根据矿物-岩石学特征，划分了它们的化学-岩石类型：6块属于非平衡型普通球粒陨石(H3和L3群各3块)；92块属于平衡型普通球粒陨石，包括：H群24块(13块H4，10块H5，1块H6)，L群64块(2块L4，44块L5，18块L6)，LL群4块(3块LL4，1块LL5)；另外两块属于石-铁陨石。6块非平衡型普通球粒陨石保存了原始的岩石学和矿物化学特征，包括：清晰的球粒结构、橄榄石和低钙辉石具有明显的成分环带以及极不均一的化学组成等。92块平衡型普通球粒陨石中的橄榄石和低钙辉石显示出均一的化学组成，表明它们达到了一定的热力学平衡。

The isotopic abundances of rare gases and cosmic-ray exposure ages of asteroid meteorites, planetary meteorites and the Apollo lunar samples applied to clue up and understanding cosmic-ray exposure history of parent bodies of different meteorite types, collision events, the relationship between cosmic-ray exposure ages and heliocentric distance of the parent bodies, irradiation history of precompaction exposure of chondrules, pairing meteorites for the Antarctic meteorites and desert meteorites, the ejection history of planetary meteorites, and relative ages of lunar craters and so on.

小行星陨石、行星陨石及阿波罗月球样品的稀有气体同位素丰度和宇宙射线暴露年龄，已广泛应用于探索和了解不同类型陨石母体的宇宙射线暴露历史、冲击碰撞事件、暴露年龄与日心距离的关系、吸积形成母体前硅酸盐球粒的辐照历史、南极和沙漠陨石中成对陨石的判别、行星陨石的溅射历史及月坑的相对年龄等关键词：宇宙射线暴露年龄；陨石；球粒陨石；无球粒陨石；火星陨石；中铁陨石

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。