Composition oxidation kinetics model of vacuum residue was gained by studying the composition change in the course of oxidation.

通过对渣油氧化过程中四组分变化的分析得到渣油四组分氧化动力学方程序。

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According to the surface chemical composition change of the steady state, the surface binding energy ratios between any two elements in the target can be evaluated.

根据稳定态时化学成分的改变，可以推算出靶中任意两元素表面结合能之比。

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High temperature, coating composition change, expansive agent happen quickly, thus forming porous expansion of insulating layer, prevent heat to the tunnel masonry relay.

高温时，涂料成分发生改变，膨胀剂迅速发生膨胀，从而形成多孔的隔热层，阻止热量向隧道砌体的传递。

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Pandemic experts explain a second wave does not necessarily entail any change in the composition of the virus.

VOA: standard.2009.09.04

If you change the composition, you change the properties. But this is different.

如果你改变组成成分，你就能改变属性，但是这是不同的。

麻省理工公开课 - 固态化学导论课程节选

If I change the composition of the mixture?

如果我改变混合物的组分，会怎么样？

麻省理工公开课 - 热力学与动力学课程节选

Their composition will change.

ECONOMIST: Post-war Iraq

Such a program would change the composition of assets and liabilities held by the Fed.

FORBES: Is Fed Policy Twisted Or Merely Sterile?

The diets were designed not to restrict calories but to change the composition of the diet.

FORBES: Large Trial Shows Cardiovascular Benefits Of Mediterranean Diet