挥发性

1. 燃素，热素原来假设的在所有燃烧物质中挥发性的一种物质成分，在燃烧中作为火焰而被释放出来
   A hypothetical substance formerly thought to be a volatile constituent of all combustible substances released as flame in combustion.
2. 石脑油一种高度挥发性的易燃液态碳氢化合物混合物，从石油、煤焦油和天然气中提炼出来，并用作石油、溶剂和制造各种化合物中
   Any of several highly volatile, flammable liquid mixtures of hydrocarbons distilled from petroleum, coal tar, and natural gas and used as fuel, as solvents, and in making various chemicals.

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