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氯化消毒
相关语句
  chlorination
    Therefore,preozonation or biological pretreatment of source water could improve the chemical safety of drinking water before chlorination,especially when it was rich in humic substance. 
    因此,源水特别是富含腐殖质的源水在氯化消毒前先进行臭氧或生物预处理,可提高饮水的化学安全性。
短句来源
  “氯化消毒”译为未确定词的双语例句
    Susceptibility of Two Human-Derived Hepatic Cell Lines in Evaluating DNA Damage Induced by MX
    两种人类肝细胞系评价饮水氯化消毒副产物MX致DNA损伤作用的敏感性
短句来源
    BACKGROUND &AIM: To study on the susceptibility of two human-derived hepatic cell lines in evaluating DNA damage induced by 3-chloro-4-dichloromethyl-5-hydroxy-2(5H)-furanone(MX).
    背景与目的:研究两种人类来源的肝细胞在评价饮水氯化消毒副产物3-氯-4-二氯甲基-5-羟基-2(5氯)-呋喃酮(MX)DNA损伤作用的敏感性。
短句来源
    MATERIALS AND METHODS: Using single cell gel electrophoresis assay, to evaluate the DNA damage induced by MX in human hepatocellular carcinoma cell lines(HepG2) and human fetal hepatocytes (L-02).
    材料与方法:应用单细胞凝胶电泳试验(彗星试验),研究人肝癌细胞株HepG2和人胚肝细胞L-02在评价饮水氯化消毒副产物MXDNA损伤作用的敏感性。
短句来源
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  chlorination
Inosine was converted to 6-chloropurinenucleoside (4) via acetylation, chlorination, and deacetylation.
      
Chlorination markers indicate HOCl generation in the quantities lethal for bacteria.
      
In addition to the chlorination reaction, myeloperoxidase exhibits some other properties depending on its oxidation state.
      
Products of dechlorination, chlorination (di-and trichloroalkanes) with G 0.8-4.0, isomerization with G up to 90, as well as oligomerization products, have been identified in the liquid products.
      
Study of Products of the Aqueous Chlorination of 2-Methylnaphthalene and α-Naphthol by Chromatography-Mass Spectrometry
      
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The purpose of this study was to find out methods on the reduction of the mutagenic activity of drinking water.The formed mutagenicity of nonvolatile organic compounds (NVOC) was researched before and after chlorination of fulvic acid(FA) pretreated by ozone and/or immobilized micro organisms(IBM) with Ames test.The results showed that at given concentration,the mutagenicity of NVOC after direct chlorination of FA was positive (P<005),and the frameshift mutant was mainly formed;while negative in other treatments.Therefore,preozonation...

The purpose of this study was to find out methods on the reduction of the mutagenic activity of drinking water.The formed mutagenicity of nonvolatile organic compounds (NVOC) was researched before and after chlorination of fulvic acid(FA) pretreated by ozone and/or immobilized micro organisms(IBM) with Ames test.The results showed that at given concentration,the mutagenicity of NVOC after direct chlorination of FA was positive (P<005),and the frameshift mutant was mainly formed;while negative in other treatments.Therefore,preozonation or biological pretreatment of source water could improve the chemical safety of drinking water before chlorination,especially when it was rich in humic substance.

为探索降低饮水致突变活性的途径,通过Ames试验,对经臭氧和/或固定化微生物(IBM)预处理的黄腐酸(FA)氯化前后形成的非挥发性有机物(NVOC)致突变性进行对比研究。研究表明,黄腐酸直接氯化后形成的NVOC致突变性为阳性(P<0.05),主要形成移码突变型直接致突变物;其它处理方式形成的NVOC致突变性为阴性。因此,源水特别是富含腐殖质的源水在氯化消毒前先进行臭氧或生物预处理,可提高饮水的化学安全性。

To study the effects of organic extracts from drinking water on human health,the effects

为研究饮水中有机提取物对人群健康的影响,采用单细胞凝胶电泳试验,对A市三个自来水厂枯水期的水源水和出厂水中的有机提取物引起的V79细胞DNA损伤效应进行了研究。结果表明:各水厂的水源水和出厂水中的有机提取物在一定浓度范围内均可诱导体外培养的V79细胞DNA链断裂,且在相同浓度下,出厂水引起的DNA迁移长度大于水源水,提示饮水氯化消毒可以增加水中有机浓集物的DNA损伤作用

BACKGROUND &AIM: To study on the susceptibility of two human-derived hepatic cell lines in evaluating DNA damage induced by 3-chloro-4-dichloromethyl-5-hydroxy-2(5H)-furanone(MX). MATERIALS AND METHODS: Using single cell gel electrophoresis assay, to evaluate the DNA damage induced by MX in human hepatocellular carcinoma cell lines(HepG2) and human fetal hepatocytes (L-02). RESULTS: MX could induce HepG2 and L-02 DNA single strand breaks at the concentrations of 30 and 100 μmol/L, respectively. The length of...

BACKGROUND &AIM: To study on the susceptibility of two human-derived hepatic cell lines in evaluating DNA damage induced by 3-chloro-4-dichloromethyl-5-hydroxy-2(5H)-furanone(MX). MATERIALS AND METHODS: Using single cell gel electrophoresis assay, to evaluate the DNA damage induced by MX in human hepatocellular carcinoma cell lines(HepG2) and human fetal hepatocytes (L-02). RESULTS: MX could induce HepG2 and L-02 DNA single strand breaks at the concentrations of 30 and 100 μmol/L, respectively. The length of DNA migration induced by MX increased significantly in comparison to solvent control (DMSO) in a dose-response manner(P<0.05). Moderate or greater DNA damages induced by MX in HepG2 were more serious than that of L-02(χ2=20.985;8.0;11.97,P<0.05). CONCLUSION: HepG2 was more susceptible than L-02 cells to DNA damage induced by MX evaluated by using single cell gel electrophoresis assay.

背景与目的:研究两种人类来源的肝细胞在评价饮水氯化消毒副产物3-氯-4-二氯甲基-5-羟基-2(5氯)-呋喃酮(MX)DNA损伤作用的敏感性。材料与方法:应用单细胞凝胶电泳试验(彗星试验),研究人肝癌细胞株HepG2和人胚肝细胞L-02在评价饮水氯化消毒副产物MXDNA损伤作用的敏感性。结果:随着MX剂量增加,可引起HepG2(>30μmol/L)和L-02细胞(>100μmol/L)DNA迁移度显著增加;中度以上损伤所占百分比在同剂量组中HepG2细胞大于L-02细胞,经比较分析,差异有统计学意义(χ2=20.985;8.0;11.97,P<0.05)。结论:应用单细胞凝胶电泳试验评价MX的DNA损伤作用,人肝癌细胞株HepG2比人胚肝细胞L-02更为敏感。

 
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