As the principal component in glass, silicon dioxide was used as early as 5000 BC.

作为玻璃的主要成分，二氧化硅早在公元前5000年就被使用。

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This new application provides on-the-glass integration of multiple applications and lets the user set context in one component, thus exposing the appropriate information in other components.

这个新应用程序将提供多个应用程序的界面集成并允许用户在一个组件中设置上下文，然后在其他组件中公开相应信息。

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Because of the surface of the glass cullet and its component characteristics, the glasphalt concrete need to be studied contrast with traditional asphalt concrete.

由于碎玻璃的表面及组分特性，需要对所制备的玻璃沥青混凝土和普通沥青混凝土进行对比性研究。

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You need to know if it's an equilibrium, and you also need to know how many components you have in your system So, a glass of ice water with an ice cube in it, which is a heterogeneous system, has only one component, which is water, H2O.

要知道它是不是平衡的，你还需要知道,你的系统中有多少组分,一杯放了冰块的水，虽然它是个非均匀系统，但它只有一种组分，那就是水。

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