去实现上面设想的方法(和很多其他为了能阅读写在陨石上的历史而需要的方法)是观察它们之中原子同位素的确切混合比例。
The way to do that (and much else that is needed in order to read the history written in meteorites) is to look at the exact mixture of atomic isotopes in them.
人们发现，自然界里许多元素，都是各种不同的同位素的混合物。
Many elements in nature are found to be mixtures of different isotopes.
溢流玄武岩的同位素体系特征表明它们的源区涉及再循环地幔的壳幔混合、岩石圈减压熔融、上—下地幔过渡带和似原始-略亏损的下地幔。
Isotopic systematics of flood basalts indicate that their sources are involved in crust-mantle mixing in a recycled mantle, decompression melting of lithosphere.
碳有两个非放射性的同位素，在太阳系的物质中，包括在大多数的陨石矿石中，它们的混合比例是众所周知的。
Carbon has two non-radioactive isotopes, and in material from the solar system, including most meteoritic minerals, these are mixed in a well-known ratio.
基于该气田天然气的组成和碳同位素特征认为，该气田的天然气也不可能是生物气与下部热成因天然气混合的产物。
Based on the characteristics of carbon isotope and components of gas in this field, it is believed that the gas is unlikely a mixture of biogas and the lower thermogenesis natural gas.
石英流体包裹体氢氧同位素组成表明，成矿流体中的水主要来源于大气降水和岩浆水的混合。
Hydrogen and oxygen isotopic composition of the fluid inclusion in quartz indicates that the water in ore-forming fluid was derived meanly from mixture water of meteoric and magmatic.
结果显示：同位素分离效应，是混合液态燃料，在低温冷冻靶丸内，形成均匀液体层的决定性因素。
The result show the effect of isotopic segregation is the key fact in the configuration of the liquid layer.
碳、氧同位素组成指示碳来源于壳幔混合。
Composition of carbon and oxygen isotope indicates that origin of carbon comes from mixture of the crust and mantle.
我国南岭地区泥盆系层控矿床的铅同位素组成变化很大，大多属混合型铅。
The lead isotopic composition of the Devonian stratabound ore deposits in the Nanling region is highly variable and belongs mostly to the "mixing type".
本文论述同位素示踪法测定多含水层混合井的试验研究及应用。
This paper discusses the experimental study and application of tbe isotope tracing method to that the multi-aquifer mixed well.
介绍的数学模型考虑了混合云中液、固态共存时以及冰面过饱和环境下稳定同位素的动力分馏效应。
The introduced mathematical model takes into account the role of the kinetic fractionation effect in a supersaturation environment at the ice surface as liquid and solid phases coexist in mixed cloud.
水的铀同位素组分稳定，并应用混合比例计算了地下水资源量，其结果与常规方法计算结果完全一致。
The uranium isotopic compositions of water are quite stable, and the mixing ratio of water body has been use...
进一步的研究揭示出：部分原子质量常是同位素的混合物。
Extensive research has shown that fractional atomic masses always mean mixture of isotopes.
硫同位素分析结果表明硫来自地壳深部混合硫源，而铅同位素分析结果反映其来源存在多源性。
Sulfur isotopic analyses are consistent with derivation of sulfur from a mixed source in deep crust, and lead isotopic analyses support derivation of lead from multiple sources.
文中介绍的数学模型考虑了混合云中液、固相共存时以及冰面过饱和环境下稳定同位素的动力分馏效应。
The introduced mathematical model takes into account the action of the kinetic fractionation effect in super saturation environment at ice surface as liquid and solid phases coexist in mixed cloud.
本文依据各气田天然气的组分特征，将天然气划分为干气、湿气、凝析气和溶解气；依据同位素组成，将天然气归因为煤成气、油成气和二者的混合气。
According to the characteristics of natural gas composition in each gas field, the natural gas is classified as dry gas, wet gas, condensate gas and dissolved gas in this paper.
本文依据各气田天然气的组分特征，将天然气划分为干气、湿气、凝析气和溶解气；依据同位素组成，将天然气归因为煤成气、油成气和二者的混合气。
According to the characteristics of natural gas composition in each gas field, the natural gas is classified as dry gas, wet gas, condensate gas and dissolved gas in this paper.
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