以下为句子列表：
英文: A similar haze layer on the ancient Earth would have also cooled the climate, thus shifting the methanogen population back toward those slower-growing species that prefer cooler weather and thereby limiting further increases in methane production.
中文: 类似的霾层同样使古地球的气候变冷，导致产甲烷菌的菌落演变回偏好较冷天气而生长缓慢的菌种，因而进一步抑制甲烷产量的增加。
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英文: Conclusion Compared with amine reduction, cyanogen bromide activation was more suitable for the preparation of pneumococcus type 1 conjugate vaccine.
中文: 结论采用溴化氰活化法制备1型肺炎球菌荚膜多糖－蛋白结合疫苗优于胺还原法。
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英文: Methods Prepare pneumococcus type 1 conjugate vaccine by cyanogen bromide activation and amine reduction respectively and determine their biochemical and immunological characteristics.
中文: 方法分别采用溴化氰活化法与胺还原法制备结合物，并对其进行生化及免疫学检测。
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英文: Objective To compare the biochemical and immunological characteristics of pneumococcus type 1 conjugate vaccine prepared by cyanogen bromide activation and amine reduction.
中文: 摘要目的对两种方法制备1型肺炎球菌荚膜多糖－蛋白结合疫苗的生化及免疫学特性进行比较。
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英文: Results The conjugation rate, high molecular conjugate content of and the antibody titer induced with pneumococcus type 1 conjugate vaccine prepared by cyanogen bromide activation were significantly higher than that by amine reduction.
中文: 结果采用溴化氰活化法制备的结合物，较胺还原法具有较高的结合率及高分子结合物含量，免疫小鼠产生的抗体效价较胺还原法明显提高。
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