n.挥发性；挥发度；轻快；(性格)反复无常

The two most important features of gasoline are volatility and resistance to knock. 汽油最重要的两个特性是挥发性和抗爆性。

Under the assumption of constant molar overflows and relative volatility, a simplified model is developed to study the behavior of the distillation process under consideration. 假定液体持液量和待分离的体系的相对挥发度均保持不变，建立了该塔的一个简化的模型，由此得到各组分在整个塔中的分布情况。

If one component changes another component's vapor pressure, or if the volatility of a component is dependent on its percentage in the mixture, the law will fail. 如果一种组分改变另一组分的蒸气压，或者说，一种组分的挥发度取决于它在混合物中的百分比，那么这一定律将归于失败。

Volatility in financial markets has declined. 金融市场的动荡降幅。

In the context of a durable relationship they should not cause excessive political volatility. 在持久关系的背景下,它们应该不会造成过度的政治波动。