评选
- 与 评选 相关的网络例句 [注:此内容来源于网络,仅供参考]
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On June 21, 2003, Mark Frauenfelder and Carla Sinclair, along with their two young daughters, decided to move from Los Angeles to Rarotonga, an idyllic island in the South Pacific, where they lived for five months.
Boing Boing 是一个关于奇趣文化和趣味科技的博客,是Technorati评选出的世界上最流行的博客,2006年曾在 Bloggies 庆典上获得终身成就奖和最佳集体博客奖。
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In terms of the acceptability of graduates from Pforzheim, the university has time and time again been assessed as one of the top German universities.
在从普福尔茨海姆毕业生可接受性方面,大学已一次又一次地被评选为德国的大学之一评估。
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Selection Committee to write the reviews of this book "has rewritten the traditional evaluation of Hirohito, revealing the true face of history, Japan has a historical warning."
评选委员会写出的评语是本书&改写了对裕仁的传统评价,揭示了历史的真面目,对日本有历史的警示作用。&
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The main research work of this dissertation is as follows: Based on the chemical reaction engineering theory and the nitrobenzene electroreduction mechanism, the plate and frame electrolyzer was designed and applied to the process of electroreduction nitrobenzene to p-aminophenol. This dissertation measured the residence time distribution data of the electrolyzer by means of the pulse response method and studied the rule of flow pattern along with the current capacity change. Under different conditions ,this dissertation studied the cyclic voltammetry properties of nitrobenzene on different electrodes by means of the dynamic cyclic voltammetry method and the electrode materials applied to the NB electroreduction have been selected primarily.Baseed on the results of cyclic voltammetry tests, this dissertation used p-electrode systems to measure the steady-state- polarization curves of nitrobenzene on different electrodes in H-type diaphragm cell, and obtained each primary factor s influence rule and the exchange current density value of each electrode.And then on the basis of the conclusions of fundamental researchs upword, the effects of influence factors on the the yield of p-aminophenol and the current efficiency,such as electrode material, current density, quantity of electricity circulated, nitrobenzene concentration . sulpuric acid concentration and so on, have been studied in detail in the systems of hign temperature , strong acidity and oxygen-poorthrough a series of electrolysis experiments in this paper.After all using Pb as anode Monel metal as cathode Dupont Nafion 417 cation-exchange membrane as membrane, this dissertation obtained the optimum technological condition: reaction temperature about 85C, current density 500A m-2, sulphuric acid concentration 20%wt.
论文的主要研究工作为:运用化学反应工程理论,结合硝基苯的电还原机理,设计出用于硝基苯直接电还原合成对氨基苯酚实验的板框式电解槽,并利用脉冲响应法测定了该板框式电解槽的停留时间分布数据,研究了流型随流量变化的规律;通过动态循环伏安法研究了硝基苯在不同电极上、不同条件下的循环伏安特性,初步评选出了用于硝基苯电还原的电极材料;结合循环伏安的测定结果,在H型隔膜电解槽中采用三电极体系测定了硝基苯在不同电极上、不同条件下的稳态极化曲线,得到了各主要因素的影响规律及硝基苯在各个电极上电还原的交换电流密度数值;在基础研究结论指导下,采用板框式电解槽,在高温、强酸、贫氧系统中,进行了一系列的电解实验,分别考察了电极材料、电流密度、通电量、硝基苯浓度、硫酸浓度等因素对收率及电流效率的影响,最终选择以蒙乃尔合金电极作为阴极、铅合金为阳极、Dupont Nofion 417阳离子交换膜为隔膜,得到由硝基苯直接电还原制对氨基苯酚的最佳电解工艺条件:反应温度85℃,电流密度500A·m~(-2),硫酸浓度20%wt。
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After an unimpressive performance in the summer friendlies, Carlo Ancelotti's men have found back their class especially thanks to Sheva's superb play: not only the Ukrainian star scored the winner for Milan in the UEFA Super Cup final against Porto, but was also man of the match, as voted by the press at the Stade Louis II in Monte Carlo.
在一系列表现不佳的的夏季友谊赛之后,安切洛蒂的手下们找回了他们的水准,这还多亏了舍娃的出色表现:这位乌克兰球星不仅在欧洲超级杯对阵波尔图的比赛中为米兰攻进制胜一球,并且被新闻媒体评选为那晚蒙特卡洛圣路易斯球场的最佳球员。
- 推荐网络例句
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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
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But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
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Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。