...以来都相信：彗星和一种称为碳质球粒陨石（carbonaceous chondrites）的极原始陨石，是地球早期挥发性元素（volatile elements）的来源，这些挥发性元素包含氢、氮和碳等，也或许包含了有机物质。
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The major difference is that Allende is depleted in the most volatile elements, like hydrogen, carbon, oxygen, nitrogen, and the noble gases, relative to the Sun.
主要的差别是，相比于太阳，阿连德陨石缺失了大部分的挥发性元素，例如氢、碳、氧、氮和稀有气体。
Experimental results identified that fluorine in coal belong to volatile elements, fluorine in fly ash and bottom ash were non rich.
结果表明：煤中氟属于强挥发性元素，在煤灰中是非浓集的。
Core inflation, which excludes more volatile elements such as energy, fell from 3.1pc to 2.6pc, its lowest level since the end of last year.
通胀的核心，并不包括像能源这部分易变的因素，能源的通胀率从百分之3.1下降到百分之2.6，这已是自去年年底以来的最低水平。
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