The little seasonal change of colloidal organic carbon, nitrogen and phosphorus indicated that a balance is maintained between the input and output of colloid matter in the water.
胶体有机碳、氮、磷季节变化幅度并不很大，表明胶体物质在水体中输入和输出大体处于平衡状态。
Soil plays an important role in maintaining the balance of global carbon and nitrogen cycling.
土壤在维持全球碳、氮循环中起着重要的作用。
Soil plays an important role in maintaining the balance of global carbon and nitrogen cycling.
土壤在维持全球碳、氮循环中起着重要的作用。
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