查询词典 meteorites

Furthermore,according to their petrologic features and mineral chemistry,21 groups of meteorites are pre...

经过岩石矿物学特征和矿物成分的对比分析，初步判定成对陨石21组。

They found that the SNC meteorites possess chemical, isotopic , and petrologic features consistent with data available from Mars at the time, findings further confirmed by Treiman et al.

应用火星侦察轨道器的高解析度影像，研究人员认为早期火山活动的增加、撞击事件或火星轨道的变化让温暖时期火星的大气层足以溶化大量地表的冰。

This site, by Larry Nittler of the Carnegie Institution of Washington, gives an overview of the study of presolar grains in meteorites.

该站点介绍了在太阳系形成以前时的红巨星和超新星粒子，这些粒子通过陨石来收集到，该网页是由美国华盛顿卡内基学会Larry Nittler先生创建的。

The team ultimately collected some 280 small meteorites, now called Almahata Sitta, with a total mass of about 5 kilograms -- the first material recovered from a known asteroid.

团队最后找到大约280块陨石碎片。这个小行星现在被命名为 Almahata Sitta ，总质量约5kg——第一个找到实物的已知小行星。

Some of these chemicals are thought to have come from a planet-forming disk of gas and dust that swirled around our young sun. Meteorites carrying the chemicals might have crash-landed on Earth.

部分有机物被认为来自围绕我们原始太阳的原始行星盘中的气体和尘埃，落在地球的陨石群带来另外一些有机物。

Meteorites arriving on Earth are decelerated by passing through our atmosphere.

到达地球的陨石经过我们的大气层时速度会降低。

Some meteorites (～15%) have especially low natural TL,suggesting that they have recently been reheated.

一些具有特别低自然TL值的陨石（～15％）表明经历了近期的加热作用，它们可能以特别小的近日距（＜0.8AU）轨道到达地球上。

The carbon in diamond and silicon-carbide grains from meteorites usually has ratios very different from this.

但是在陨石中的钻石和金刚砂颗粒，它们的两种同位素的比例很是不同。

This programme is all about meteorites and asteroids.

这是有关陨石及小行星的实验。

About 90% of meteorites are classified by the successors of Silliman and Kingsley as chondrites.

希里曼和金斯利的后继者将约90%的陨石都分类为球粒状陨石。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。