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 polypeptide compositions of thylakoid membrane were different not in some composition but in some content.

两优培九的类囊体膜并不是某些多肽组分存在差异，而是含量差异。

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The transition of contemporary composition teaching can be viewed from the three dimensions of value orientation, content and assignment.

当代作文教学的转型可以从价值取向、内容与命题三个维度来认识。

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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