一个特定元素的同位素具有相同的化学特征，但在物理性质上有一些细微差异。
The isotopes of a given element have the same chemical properties but slightly different physical properties.
虽然初始的研究是为了确定其食物随季节的变化，同位素测试让他们发现了明显的性别差异。
While initial research was aimed at looking at seasonal variations in diet, the isotopic tests pointed them instead to apparent gender variations.
今年3月，通过对冰岛一带贝壳的研究发现，其硬壳氧同位素的水平会随水温的变化而产生差异。
A study this March of clamshells taken from Iceland found that the levels of oxygen isotopes in the shell layers varied depending on the temperature of the water in which they formed.
二者在甲苯、乙烷的碳同位素组成，氮气和汞蒸气含量等方面存在着一定的差异。
They are different from each other in toluene contents, the carbon isotope composition of ethane and the nitrogen and mercury vapor contents, etc.
碳同位素分馏动力学模型在不同盆地会存在差异，不仅取决于气源条件，还与聚集历史、沉积-构造史有关。
The kinetic model of carbon isotope fractionation may have difference in the different basin, which lies on gas source condition, accumulation history and sedimentary-tectonics history.
同位素具有物理性质上的轻微差异。
这整体上与深海氧同位素比较接近，与黄土剖面一些指标差异较大。
This generally agrees with deep sea oxygen isotope and differs by large from some climatic indexes of loess profiles.
无机成因天然气与生物成因天然气在地球化学特征上存在显著的差异，主要表现在化学成分和同位素组成特征。
There are some distinct geochemical differences between the organic and inorganic gases, mainly in chemical composition and the composition of isotopes.
即不同金管之间气态烃的相对含量和碳同位素组成差异很小。
The proportional and carbon isotopic compositions of hydrocarbon and non-hydrocarbon gases are almost identical among these gold capsules.
最后，讨论了大柴旦盐湖卤水和小柴旦盐湖卤水的硼同位素组成的差异。
Finally, the boron isotopic difference between Dachaidan and Xiaochaidan salt lake was also discussed.
最后，讨论了大柴旦盐湖卤水和小柴旦盐湖卤水的硼同位素组成的差异。
Finally, the boron isotopic difference between Dachaidan and Xiaochaidan salt lake was also discussed.
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