The combined biochemical process includes three sections: anaerobic biochemical reduction, aerobic biochemical oxidation and contact biological degradation.

介绍了缺氧-好氧-接触氧化法处理难降解焦化废水的工艺原理、污泥的培养驯化及试运行效果。

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After biologic reduction zone is developed and biochemical layer is produced fully, organic contaminants can be naturally biodegraded.

只有当生物还原带形成后，生化层才发育成熟，包气带对有机物能进行有效地降解和清除，具有良好的天然降解功能。

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Objective To compare the biochemical and immunological characteristics of pneumococcus type 1 conjugate vaccine prepared by cyanogen bromide activation and amine reduction.

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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