Even after normal births the mother \ \ \ 's milk continued to change in protein content etc. to suit the needs of the baby as it grew.

为了更好地满足婴儿成长的需要，甚至在生产之后母乳也会继续改变其蛋白质含量等其他方面。

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The addition of melamine increases the nitrogen content of the milk and therefore its apparent protein content.

因此，添加三聚氰胺能提高牛奶的含氮量水平，从而造成蛋白质水平虚高。

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Companies using the milk for further production (e.g. of powdered infant formula) normally check the protein level through a test measuring nitrogen content.

而使用牛奶进行下一步加工(比如婴幼儿配方奶粉)的公司，一般通过测量含氮量来检测蛋白质含量。

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