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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在不同温度时间下特性粘数基含量变化。

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The carboxylic content in oxycellulose was analyzed quantitatively by FTIR using KSCN as internal standard.Calibration curve with good linear relationship was obtained.

摘KSCN为内标，用傅里叶变换红外光谱法(FTIR)对氧化纤维素中基含量了定量分析，得出了线性关系较好标准曲线。

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原声例句
Osmosis-泌尿

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.

这是因为含有性基，如谷与天冬，们具有一些以COO-或COOH形式存在的羧基。

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disbowel, disbranch, disbud, disbudding, disburden, disbursable, disbursal, disburse, disbursement, disburser,

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