以下为句子列表：
英文: In the first part of our experiments, exosome derived from CML patients and K cells were purified by ultrafiltration centrifugation and sucrose gradient ultracentrifugation.
中文: 第一部分实验，采用离心超滤和蔗糖密度梯度离心等方法分离出例慢性髓细胞白血病慢性期患者CML细胞和K细胞释放的exosome，经透射电镜观察其超微结构。
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英文: Lymphocyte chalone was partially purified by ultrafiltration and chromatography on Sephadex G7. Its inhibitory effect on proliferation of T, B lymphocyte was demonstrated by [ H]-TdR incorporation method.
中文: 淋巴细胞抑素粗提物经超滤、葡聚糖凝胶柱层析得到初步纯化,[~ H]-TdR参入试验证实SP_可抑制淋巴细胞分裂,且含有T、B淋巴细胞抑素的活性。
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英文: Large-scale Purification of Plasmid DNA by Ultrafiltration with Hollow Fiber Filter and Hydrophobic Chromatography
中文: 中空纤维超滤和疏水层析大规模纯化质粒DNA
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英文: Study on the elimination of bacterial endotoxins by ultrafiltration device
中文: 超滤法去除细菌内毒素
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英文: Mechanism and model of chiral separation of tryptophan by ultrafiltration using BSA(Ⅰ)
中文: 牛血清白蛋白为分离剂超滤拆分色氨酸的机理和模型(Ⅰ)
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