以下为句子列表：
英文: Abstract: Mainly reviewed distribution of organic nitrogen, early diagenesis (such as counteract-eutrophication, nitrification/ denitrification et al.), the controlling factors of nitrogen cycling; and the relationship between nitrogen and ecological syst
中文: 文摘:主要阐述海洋沉积物中氮的存在形式与分布、氮的早期成岩和去营养化作用、硝化和反硝化作用以及氮与生物特定种群的关系等,探讨了影响海洋沉积物中的氮循环的主要因素,分析了海洋沉积物中的氮与生态系的关系,以期对研究氮的海洋生物地球化学过程有所帮助.
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英文: Abstract: Pressure separation is usually controlled by the following factors, such as subsidence rate, sediment types and diagenesis during the diagenetic evolution, as a result the pressure gradient is uncontinuous.
中文: 文摘:地层压力分隔化是由于沉积物在成岩演化过程中受各种因素，如沉积速率、沉积物类型以及成岩作用的影响，使地层中的流体压力梯度呈现出随深度变化不连续的一种现象。
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英文: Genetic types of PbZn deposits can be devided into sedimentation-diagenesis and thermal deposits.
中文: 摘要鄂西地区基本上可划分出沉积成岩型铅锌矿床和热液型铅锌矿床。
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英文: An Enzymatic Method for Random- (Site-Specific)Mutagenesis of Ginseng peptide Gene in vitro
中文: 人参多肽基因的酶法体外随机——定位诱变
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英文: EFFECT OF MUTAGENESIS AT Ser 177 RESIDURE IN PENICILLIN G ACYLASE ON ACTIVITY OF THE ENZYME
中文: 青霉素G酰化酶α亚基Ser177的突变对酶活性的影响
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