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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在不同温度和时特性粘数和端羧基含量变化。

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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.

摘要以KSCN作为内标，用变换红外光谱法(FTIR)对氧化纤维素中羧基含量作了定量分析，得出了线性关系较好标准曲线。

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3G, 401(K), a,

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原声例句
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.

是因为白蛋白含有酸性氨基酸，如谷氨酸与天冬氨酸，它们具有COO-或COOH形式存在的羧基。

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festive, festivity, festivous, Festmeter, Festo, festology, festoon, festooner, festoonery, festschrift,

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3G, 401(K), a,
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