X-ray photoelectron spectroscopy proves a very effective mean in identifying the film composition and the chemical states of the elements in the complicated oxide film.
射线光电子能谱是鉴定这类复杂氧化物膜中元素的化学态及膜组成的有效工具。
The analysis of plane geometric composition is a emphasis and difficult point of teaching, it is abstract and complicated for the beginner.
平面体系几何组成分析是结构力学教学的重点和难点，初学者总感到抽象难懂。
The unstable index behaved in flotation process research on Shizhuyuan low grade, complicated chemical composition fluorite bored researchers for a long time.
柿竹园低品位复杂萤石的浮选工艺研究一直处于试验阶段，指标不稳定。
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