比丰 meaning in Chinese

bifoun

Results the mutagenicity of water body displayed a rule of well < river < pool ; the mutagenicity detected in dry season was higher than that in rainy season ; the numbers of micronucleus induced by river and pool water in dry season were found to be positively correlated with the incidence of stomach , esophagus and liver cancer , whereas only pool water showed significant relationship with stomach cancer occurrence in rainy season ; well , river and pool water in taixing city all can cause dna damage in peripheral blood lymphocytes , and water of river cause dna damage heavily
结果：水体致突变性呈塘水河水井水的规律；相同地区水体的致突变性在枯水期比丰水期强；枯水期河水和塘水诱发的微核效应与当地肝癌、胃癌和食管癌发病率有高度的正相关，而丰水期仅塘水微核效应与胃癌发病率有正相关；诱发微核率较高的井水、河水和沟塘水对人淋巴细胞都具有致突变性，其中尤以河水为甚。