The elemental composition and valence state of the elements and their changes with the variation of depth were investigated by mains of XPS.

用XPS研究了渗硼层磨损表面的成分、元素价态及其随深度的变化。

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The elemental composition and the temperature of thermal explosion are principal factors to influence the reactions and morphology of the products.

体系成分和热爆温度是影响反应及产物形态的主要因素。

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The PET fibers are treated by cold plasma technology and the elemental composition and the type of functional groups of the surface of PET was analyzed by ESCA.

采用冷等离子体技术处理涤纶纤维，利用ESCA分析了冷等离子体处理前后的纤维表面元素组成、官能团类型的变化。

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The orbiter will carry instruments to study gamma ray and heat emissions from the planet and construct a global map of the planet's elemental composition.

CNN: High-resolution images help prepare for Mars landing