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The changes of intrinsic viscosity and end carboxyl group content with temperature and time were studied for poly(trimethylene terephthalate)(PTT), PET and CDP.

研究了聚对苯二甲酸丙二醇酯(PTT),PET,CDP间下的特性粘数羧基含量的变化。

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Osmosis-泌

This happens because albumin has acidic amino acids, like glutamate and aspartate, which have some carboxyl groups that are in the form of COO- or COOH.

这是因为白蛋白含有性氨如谷氨与天冬氨,它们具有一些以COO-或COOH形式存在的

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Osmosis-泌

When there's a high pH, or alkalosis, there are very few protons floating around, and so those carboxyl groups tend to be in the COO- form.

液pH值高或碱中毒时,几乎没有氢离子在周围漂浮,所以那些倾向于呈COO-的形式。

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