一些如铀一般的元素，通常在核电厂用作核燃料，都是有放射性的；这些元素由于自身的性质是没有无放射性状态的。

Some elements such as uranium, commonly used as fuel in nuclear power plants, are always radioactive; there is no nonradioactive form of them that naturally occurs in nature.

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不管这是否可行，都说明了当代交战状态的性质正在改变。

Whether it works or not, it shows how much the nature of modern belligerency is changing.

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与当前应用程序环境中的常见状态不同，在服务环境中编程模型的一些性质有助于版本化。

Unlike the common state in current application scenario, in a services world there are aspects that are native to the programming model that help in versioning.

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So what they do is, they're describing how these thermodynamic properties change, in terms of only state functions and state variables.

他们的作用是描述,随着状态函数和状态变量的变化，系统的热力性质如何变化。

麻省理工公开课 - 热力学与动力学课程节选

That's important because one of the attributes of stem cells is that they remain at their site and capable of reproducing themselves.

这非常重要,因为干细胞的性质之一,就是它们能维持自身的状态,并能进行再分裂

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