研究结果表明，在整个培养过程中，仅加莠去津的土壤中微生物生物量碳、氮、磷的含量均显著降低，与对照相比，分别平均降低了13.5%，10.1%，20.0%。

Results showed that soil microbial biomass C, N, P significantly decreased after addition of atrazine. As composed with control, microbial biomass C, N and P decreased averagely 13.5%, 10.1%, 20.0%.

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应用5-杂氮脱氧胞嘧啶处理上述白血病细胞系，观察去甲基化处理对失活基因的影响；

Then it was observed whether the inactived genes in leukemia cell lines were actived after the treatment with 5-aza-deoxycytosin, a kind ofdemethylation agent .

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氮-2'-脱氧胞苷等去甲基化药物作为抗肿瘤药物的效应，归因于两种机制：细胞毒性和诱导低甲基化。

The efficacy of hypomethylating agents (e. g. 5 aza 2′ deoxycytidine) as antineoplastic agents has been attributed to two distinct mechanism: cytotoxicity and induction of hypomethylation.

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This is very easy molecule because we know exactly where to put them without even having to think, we only have one option, and we'll make a triple bond between the carbon and the nitrogen.

这个分子非常简单,因为我们知道应该把它们放在哪里,甚至不用去想，我们只有一个选择，我们将在碳与氮之间形成一个三键。

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