等浓度

It mainly includes the new achievement of researches on iodometric method,spectrophotometry method,chemical-luminescence method, electrochemical method etc.

介绍了近年来国内外的臭氧浓度检测方法，主要包括碘量法、分光光度法、化学发光法、电化学法等方面研究的新成果。

Use steel emery to treat steel cast iron and other irony metal; use quartz sand to treat stainless steel, Alminium, Zinc or other ironless metals.

对于金属表面的防锈油、油质等，可使用溶剂（如丙酮、120#以上高标汽油或95%浓度的酒精）浸泡或冲洗进行脱脂。

Seauckthorn juice can be appropriate drinks afer the diluting, which could block the N-nitroso Synthesis and also can block N-dimethylnitrosaminewhich can lead to cancer.The flavone of Seabuckthorn contains coumarin, isocoumarin, furan coumarins, lignin, as well as bitter polyphenols, 5 - serotonin, which are benefited for anti-cancer.

沙棘汁经稀释成宜引用的浓度后，能阻断N-亚硝酸的合成，另外沙棘汁对致癌物N二甲基亚硝胺也有阻断与防护的作用；沙棘黄酮中含有香豆素，异香豆素，呋喃香豆素，苦木素以及多酚类，5-色胺等具有综合抗癌作用的成分。

An isocratic HPLC assay was developed for simultaneous determination of levodopa methyl ester and levodopa in the hydrolysate of levodopa methylester.

采用等度高效液相分析方法同时检测左旋多巴甲酯及其水解产物左旋多巴，得到了一系列水解速率常数以及氢离子浓度和温度对水解反应的影响。

The kinetic model of nitrification developed by IWA is only applicable to the nitrification of sewage with low concentration of ammonia nitrogen,such as municipal sewage,but not applicable to the nitrification of garbage percolate.

国际水协建立的硝化动力学模型仅适用于城市污水等低浓度氨氮污水的硝化反应，不适用于垃圾渗滤液的硝化反应。

The results showed that extracts from 8 plant species were more inhibitory to S.fuliginea than the others,with EC50 lower than 0.5%.Among the 8 extracts,the preventive effects of 6 plant extracts except Artemisia capillaries and Portulaca oleracea were higher than their curative effects.The preventive effects of 1.25%extract from the 8 plants were higher than that(74.42%) of 100 μg/mL triadimefon.1.25% extract from Cortex phellodendri,P.cablin,Portulaca oleracea,Fructus cnidii and Kadsura japonic exhibited the curative effect of as high as 82% to S.fuliginea,higher than that(78.89%) of 100 μg/mL triadimefon.

其中水蓼、川黄柏、连翘等8种植物提取物对黄瓜白粉病菌具有较好抑制作用，EC50值均小于0.5%，除茵陈和马齿苋外，其他6种植物提取物对黄瓜白粉病的保护效果均高于治疗效果。8种植物提取物在1.25%浓度下对黄瓜白粉病的保护效果均高于化学药剂三唑酮100μg/mL(74.42%)；1.25%的川黄柏、广藿香、马齿苋、蛇床子、南五味子提取物对黄瓜白粉病的治疗效果达到82%以上，高于三唑酮100μg/mL(78.89%)，说明在黄瓜白粉病发生之前或初期使用这8种植物提取物能够达到较好的防治效果。

Results: When the concentrations of artemisinin were 1×10^(-4), 1×10^(-5) and 1×10^(-6)mol/L, the growth of cells was inhibited remarkably in a dose-dependent manner. Fluorescence staining showed obvious apoptosis, such as karyopyknosis and agglutination. RT-PCR assay shows the expression of Caspase-3. Artemisinin could lead to the decrease of mitochondrial cytochrome c concentration, which in turn lead to the increase of cytoplasmic cytochrome c concentration.

结果：青蒿素的浓度为1×10^(-4)，1×10^(-5)，1×10^(-6)mol/L时，细胞生长受到显著抑制，并呈剂量依赖性；Hoechst33342/PI双荧光染色可观察到明显的核浓缩、凝集等细胞凋亡表现；RT-PCR检测到Caspase-3的表达；Western-blot检测1×10^(-5)mol/L药物处理细胞后线粒体细胞色素C表达水平下调，细胞浆出现明显细胞色素C蛋白条带。

Results: observed typical changes of apoptosis(chromosome condensation, karyorrhexis, apoptotic body ) by TEM and Fluorescence microscopy. The number of apoptosis was increased with elevation of LPS concentration under the microscope.

结果 Hoechst荧光染色及电镜观察到脂多糖处理后滋养细胞染色体浓缩，细胞核裂解，见凋亡小体等典型凋亡表现，镜下随着脂多糖浓度的增加凋亡细胞数量显著增加。

Through experiments,this paper established the best qualification of leadin phase analysis of a metal mine in Hexi region,Gansu province,including the density of selective solvent ,extraction time etc.

通过实验，建立了甘肃省河西地区某金属矿中铅的物相分析的最佳条件，包括选择性溶剂浓度，浸取时间等。

By imitating different concentration of Cd2+ Cu2+ Cr3+ Cr6+and Zn2+polluted water environment,we mainly studied their toxic effects on aquatic piants by means of measurement of physiologicai indexes and electron microscopy observation as well as the relieving to Cu2+ injury of antioxidase enzyme system in Lemna minor L. and Vallisneria asiatica Miki in this paper by throwing Ce.the experimental results showed that Cd2+ Cu2+ Cr3+ Cr6+ and Zn2+ might injure photosynthetic systems, protective enzyme system, substance metabolism systems and cell ultrastructure of the plant.

本文通过模拟不同浓度梯度的重金属Cd~(2+)、Cu~(2+)、Cr~(3+)、Cr~(6+)和Zn~(2+)污染环境，利用生理生化测定、扫描电镜、透射电镜、气相色谱及激光共聚焦等实验手段，研究了四种金属离子对不同生态型的水生植物的毒害影响，初步探索了Ce对浮萍Cu害的缓解效应和La、Zn及其交互作用对浮萍活性氧清除系统影响。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！