This is a chemical composition.

这是化学合成物。

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It is also high in antioxidant properties due to a chemical composition that includes tannins, phyto-chemicals and flavonoids.

它还具有高的抗氧化成分，其中包括单宁酸，植物化学品和黄酮类化合物。

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Chemical analysis: chemical analysis regarding material quality a chemical composition to be found in conformity with the standard stipulations.

化学分析：对材质的化学成分进行化学分析，化学成分符合标准规定。

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Now, the differences here may be subtle in terms of chemical composition or if you put these cells under a microscope and looked at their analysis.

干细胞与祖细胞化学成分的区别,还非常微小,除非你把细胞放在显微镜下,或者看细胞分析报告

耶鲁公开课 - 生物医学工程探索课程节选

In the time it takes for one cell division to occur, it could be that this cell entraps a different chemical composition of the cytoplasm then this entraps, and that's a well known concept.

当一个细胞分裂发生期间,很可能这个细胞截留了一种不同的,细胞质化学组分,这种非对称分裂是一个广为人知的概念

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Besides its temperature, the light coming from a star can also tell astronomers a lot about its chemical composition.

ECONOMIST: Twinkle, twinkle, giant planet

To examine the relationship between the newly discovered goo and barnacle glue, Dr Vollrath's colleagues, Katrin Kronenberger and Cedric Dicko, took a look at the chemical composition of both.

ECONOMIST: A species of crustacean makes silk underwater

The exact chemical composition of a fibre's glass determines how transparent it is to different frequencies, and also its tendency to disperse those frequencies even when it is transparent.

ECONOMIST: Optical communications