characteristic infrared absorption spectrum
characteristic infrared absorption spectrum
特征红外吸收光谱
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Results Utilizing lactic acid dissolution and alcohol precipitation technology could prepare granules of chitosan lactate, which had characteristic absorption peak in infrared spectrum.
结果利用乳酸溶解和醇沉淀工艺可制备出壳聚糖乳酸盐颗粒，在红外光谱中具有特征性吸收峰。
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