以下为句子列表：
英文: Cashmere is a vital aspect of China's high-grade wool textiles, and is a major foreign exchange-earning export item.It is also an important source of income for herdsman in the primary production areas of cashmere.
中文: 羊绒是我国高档毛纺织品的重要原料和出口创汇的重要商品，是主产区牧民的重要收入来源。
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英文: Coastal zones are important habitats to fauna, having a primary production for offering such as benthos and sessile organisms.
中文: 摘要沿岸海域一直是生物重要的栖地，并且提供像底栖生物或附著生物相当高的基础生产。
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英文: In general, three developing phases of models of lake eutrophication have been arisen: (1) Single limited factor models, such as the phosphorus model. (2) Models of multiple limited factors, such as models for predicting the primary production of phytopla
中文: 总的来说，湖泊富营养化模型大概经历了以下三个发展阶段：（1）单限制因子模型，如磷模型；（2）多限制因子模型，如浮游植物初级生产力估测模型；（3）生态－动力学模型，它是目前也是以后发展的主流。
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英文: Mankind appropriates about a quarter of what is known as the net primary production of the Earth (this is the plant tissue created by photosynthesis)—a lot, but hardly near the point of exhaustion.
中文: 人类消耗了1/4的被称作地球主要净产出的产品（由光和作用产生的植物组织），虽然很多，但离耗尽还远得很。
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英文: Nitrogen is the most limiting nutrient in many plant communities, and is the major factor affecting primary production of plant.
中文: 氮在许多植物群聚中属于有限的养分，且是植物最初生产力之主要限制因子。
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