The system is based on the spread of the primary tumor (t), the extent of lymph node involvement (n), and the presence or absence of metastases (m).

系统包括三个部分：原发肿瘤的扩散程度(t)；淋巴结的转移程度(N)和是否有了其他器官的转移(M)。

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Study on transfer and transformation of NH3-N from leachate in soil and groundwater was carried out by simulated experiment, influence extent and law of leachate pollution on soil were achieved.

通过模拟实验对渗滤液中的氨氮在土壤和地下水中的迁移转化进行了研究，从而得出渗滤液对土壤的影响程度和规律。

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When used to treat wastewater composed NH4+-N and organic carbon source, the nitrifying activated sludge pellets and the activated sludge pellets can also produce SND phenomenon in a certain extent.

当处理有机氨氮废水时固定化硝化污泥颗粒和固定化活性污泥颗粒均可实现一定程度的单级生物脱氮。

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