Fourth, composition and content of the paper.

第四，论文构成及研究内容。

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Oil fatty acid composition of different strains and the existence of significant differences in content, the experimental data for the quality of tea rich selection of basic materials.

不同品系油脂脂肪酸组成及其含量存在明显差异，该实验数据可以为油茶的品质选育提供丰富的基础材料。

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According to the new guidelines, the labels must contain the nutritional composition of the product and its energy content.

根据新的指南，标签必须包含产品的营养成分和能量的含量。

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The chemical composition of paints has been examined, and some paints have even been radioactively dated (it is the lead content that is key here).

ECONOMIST: Finding forgeries: Different strokes | The