This last equation does not contradict the entropy-of-mixing formula.

此式与混合熵公式并不矛盾。

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While there's nothing wrong with mixing breast milk and formula in the same container, it's not recommended simply because you don't want to waste a single drop of your precious breast milk.

虽然把母乳和配方奶在同一个容器中混合不会有什么问题，可是我们并不推荐这种做法，只是因为你并不想浪费任何一滴宝贵的母乳。

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Strictly controlling the material formula, mixing process and extrusion processing process were the main routes to control the colour of PVC extruded product.

认为对材料的配方及配混工艺、挤塑加工工艺进行严格控制，是控制好pvc挤塑制品色泽的主要途径。

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