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The effects of initial concentration of methylorange ,pH value of solution, concentration of Cl~- and aerating oxygen or not on photocatalytic degradation rate of methylorange were investigated with anatase TiO_2 as catalyst under normal daylight lamp.

以锐钛矿型TiO2为光催化剂，以普通日光灯为激发光源，考察了甲基橙的初始浓度、溶液pH值、Cl-的浓度以及通氧与否等条件对甲基橙光催化降解速率的影响。

The vertical concentration distribution is obtained for the mixed layer and free atmosphere for which the fitting from a linear and an exponential decay law, respectively, leading to the lapse rate of ～ 64cm〓 per 100m rise for the concentration in the mixed layer over the study region.

大气气溶胶粒子在逆温层下存在明显累积，混合层和自由大气中分别随高度线性和指数递减，辽宁地区混合层内垂直递减率约为-64cm〓/100m。

The photolysis decoloration rate increases with the concentration of H2O2, but, with a high concentration of H2O2, the improvement is not obvious.

染料光解脱色速率随H2O2浓度的增加而增加，但在高H2O2浓度时，降解速率增加不明显。

Aiming at the questions such as low grinding concentration,thick fineness of iron ore concentrate and high grade of tailing caused by the wet pre-selecting process before grinding,through the check of the flow and the results of small-scale test,puts forward the improved measures such as increasing grinding concentration,adding demagnetizer,screening the undersize first then floating,etc.

针对磨前湿式预选工艺造成的磨矿浓度降低、铁精矿粒度变粗、尾矿品位偏高等问题，通过流程考查和小型试验研究，提出了提高磨矿浓度、加设脱磁器、对筛下物料进行先筛分后浮选等改进措施。

Values of hydration number of amino acids have been calculated at different temperature and concentration of denaturant. It is found that they decrease with increasing temperature and concentration of denaturant. Denaturant and increasing temperature have cooperative dehydration effect on amino acids.

计算了不同温度和变性剂浓度下氨基酸在乙酸钠、丁酸钠、己酸钠、辛酸钠和盐酸胍水溶液中的理论水化数，发现它们随变性剂浓度的增加和温度的升高而减小，说明变性剂和升温对氨基酸有协同脱水作用。

Through determination experiment of AP solutions concentration by using densimeter and thermometer, relation table of temperature-density-concentration of AP solutions was obtained.

通过用密度计和温度计测定高氯酸铵溶液浓度的试验，并由此得到AP溶液的温度-密度-浓度三者之间的关系表，通过该表用密度计和温度计可快速测定AP质量浓度，偏差为±4g/L，符合工艺要求。

Objective: To study different concentration of sodium sulfide depilatory which have different degree injury to new zealand rabbits skin and to find the small injury and good unhairing concentration.

目的：探讨不同浓度硫化钠脱毛剂对新西兰家兔皮肤的损伤程度，试图找到对实验动物皮肤损伤小、脱毛效果佳的脱毛剂浓度。

With the increase of NaCl concentration and prolonging of stress time,the contents of Na in leaves of the untrasgenic plant was more distinct than the transgenic plant,especially under 0.9%NaCl stressed after 40 days, the contents of Na was 2.0-6.2 times compared with the transgenic plant in the same desposition,therefore,the un-transgenic plant died under this concentration in the end .

随着盐浓度的增加和胁迫时间的延长，对照植株叶片中Na 含量极显著地高于转基因植株，特别是在0.9%盐度下胁迫40d，对照植株的Na 含量极高，是该处理下转基因植株的2.0-6.2倍，因此，该浓度下的对照植株最终死亡。

The performance of device is dependent on the concentration of TiO2-nanotubes,appropriate concentration of TiO2-nanotubes can connect moles of C60 which afford more direct band pathway for carrier transport especially electron transport.

实验表明，TiO2纳米管的加入增强了器件的光伏特性，并且随着TiO2纳米管混合比例的提高，器件的电加热管短路光电流和光电转换效率也相应的提高了。

The experimental results of cyclic operation indicate that, sulfuric acid concentration in feed solutions decreases and sulfuric acid concentration in dialyzate increases in the operational process, furthermore, rejection ratio of rare earth is very high, and DD can achieve the purpose of sulfuric acid separation from rare earth sulfate solutions.

循环式结果表明，渗析过程中，料液中硫酸浓度不断减小，而渗析液硫酸浓度不断增大，而且由于对稀土具有较高的截留率，扩散渗析法能达到硫酸与稀土有效分离的目的。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。