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The main content of this paper as follows: The acidic strength, reaction temperature, reaction time of Chlorine-aluminate Ionic Liquids with different structure of cation on the activity of transalkylation of MN with TeMB and the selectivity of 2,6-DMN were studied. The optimum reaction condition was obtained: the molar fraction of AlCl_3 is 0.71, molar ratio of 2-MN and TeMB is 1, the amount of ionic liquid is 32wt%, reaction temperature is 20℃and reaction time is 8h using X-xAlCl_3 and X-xAlCl_3 as catalysts; the optimum reaction time is shortened 6h using Et_3NHCl-xAlCl_3 as catalyst.

本文主要研究了以下内容:分别考察了不同阳离子结构的氯铝酸盐类离子液体的酸强度、反应温度、反应时间等因素对MN和TeMB转移烷基化的催化反应活性和2,6-DMN选择性的影响,优化得到适宜的反应条件为:以X-xAlCl_3和X-xAlCl_3为催化剂时,AlCl_3的摩尔分数x=0.71,2-MN和TeMB摩尔比为1∶1,离子液体用量为32wt%,反应温度为20℃,反应时间为8h;以Et_3NHCl-xAlCl_3为催化剂时,反应时间缩短到6h。

At last, the results of synthesis by using ISE and the simulation diagram by using Modelsim are given.

在程序的设计过程中进行了程序优化,在ISE和ModelSim上进行了综合和仿真。

In the part of preparing HMT, the thesis did research on the preparing process of using isobutylene , 2,3-dimethyl-butene-l , 2,3-dimethyl-butene-2 as the materials respectively .Then using GC-MS , the main outgrowths in each reaction systems were analyzed.

在中间体合成部分,本文分别对新己烯、2,3—二甲基—丁烯—1、2,3—二甲基—丁烯—2为原料合成HMT的工艺进行了研究,然后利用GC-MS对三种原料合成HMT的主要副产物分别进行了分析。

The design, the conformation and the construction of a 5-story base-isolated frame structure in Xinyi City are introduced. The mechanical behavior of a base-isolated frame structure using lead rubber bearings and using non-full-lead rubber bearings is compared and analyzed. This isolated building has been set up.

分析了框架结构采用非满高铅芯夹层橡胶垫基础隔震时的性能,并与采用普通铅芯夹层橡胶垫基础隔震的框架结构进行了对比分析。

The article presents engineering design options for expanding natural gas-synthetic ammonia units using this new technology as well as production schemes for producing ammonia and urea as a byproduct using the 3×1 stage natural gas reforming and one-step isopiestic transformation method.

介绍了用该新工艺对我国天然气生产合成氨装置进行扩建改造的工程设计方案,以及天然气三-段转化等压一次变换制氨联产尿素的生产设计方案。

The osmotic coefficients and saturated vapor pressures have been calculated at the different temperatures .The experimental values of the osmotic coefficients for the Li_2SO_4-H_2O system were consistent with the values in the references. The results revealed the rules of the changing in osmotic coefficients and saturated vapor pressures with ion strengths and the molality fractions of Li_2B_4O_7 at different temperatures. The isopiestic equilibrium molalities were correlated by using the modified and the extended Zdanovskii rules for non-ideal mixtures, and obey well the Zdanovskii rules. The ion interaction parameters of Pitzer model have been determined by using the two methods for Li_2SO_4-Li_2B_4O_7-H_2O at 298.15K system.

本文计算了不同温度下该纯盐体系和混合盐体系的渗透系数和饱和蒸汽压,并将298.15K下的纯盐溶液渗透系数的实验值与文献值进行比较,取得了相一致的结果;揭示了不同温度下渗透系数和饱和蒸汽压随离子强度及Li_2B_4O_7质量摩尔浓度分数yb的变化规律;本文用Zdanovskii规则修正式和扩展式关联了298.15K下该混合盐体系的等压平衡浓度之间的关系,计算结果表明用这两个方程可以描述该体系在全浓度范围内的等压平衡浓度间的关系。

Combined with the project general situation,it introduces the whole setting of portal jib crane ,represents the construction process and methods of using portal jib crane batch by batch,consolidation large-tonnage steel box girder,steel girder spanning by using drag put up girder,so to increase the construction progress and construction quality.

结合工程概况,对龙门桁吊的总体布置情况进行了介绍,阐述了利用龙门吊分节段吊装、拼装大吨位钢箱梁,用拖拉架梁进行钢梁架设的施工步骤与方法,从而提高了施工进度和施工质量。

Purposive database was designed using Microsoft Office Excel 2003 and the data were analyzed using JMP(p<0.05 was statistically significant).

资料库设计使用Microsoft Office Excel 2003,资料分析使用JMP软体(p<0.05为有意义)。

During the design process of low voltage equipments using flow chart and state matrix , the distributing control functions using Karnaugh map can satisfy the demand for the design of sequential circuits with/without intermediate states.

用流图法和状态矩阵设计低压电器电路时,卡诺图法分配控制函数能较好满足无过渡态和有过渡态的时序电路设计。本文分别给出了两种电路的设计实

Starting with the need to make effective use of limited resources and to conserve the global environment, challenges to be addressed are numerous. Taisei Kogyo is highly acclaimed by society as "Taisei Kogyo the Technical Company" by meeting the needs of the industry by using its "product appeal" and "expertise" for meeting a wide range of applications ranging from large plants to amusement facilities to production lines for information technology equipment. The company does so by using its accumulated know-how and experiences in an attempt to contribute to society as a manufacturer specializing in oil filters and coolers. With our new management policy expressed in the form of the slogan "Speed, Smile, and Communication," Taisei Kogyo aims to produce global products linked closely to the market needs under its production policy "Do our best for all customers" by having all its employees work as one with a customer focus.

产品系列: SFN系列 SFT系列 SFG系列 VN系列 ISH系列 LND系列 LN系列 351系列 352系列 UL系列 UM系列 UH系列 SH系列 GF系列 GC系列 4201系列 TL系列 LCN系列 AK系列 CFK系列 TRF系列 CS系列 CF系列 107系列 AP系列 FA系列 FU系列日本大生是日本重工业集团公司,日本大生的过滤器应用在工业的各个领域,优良的品质和广泛的互换性使日本大生成为许多企业的首选品牌过滤器●压力过滤器●回油过滤器●吸油过滤器●空气过滤器及污染显示器滤芯过滤精度:1μm~100μm过滤面积:420cm2~316800cm2过滤比:β值大于216材质:玻璃纤维、纸质纤维、金属织网滤芯符合国际标准● ISO2941 滤芯抗破裂试验● ISO2942 滤芯结构完整性检验● ISO2943 滤材与液体相客性检验● ISO3723 滤芯额定轴向载荷检验● ISO3724 流量疲劳特性曲线● ISO3968 流量特性曲线● ISO4572 多次通过试验

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相关中文对照歌词
Using Our Feet
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Without Using Hands
推荐网络例句

The objective is to subjugate and discourage the people, because that allows the elite to continue to rule unopposed.

其目的是压制和打击人民的积极性,因为这可以让实权派继续统治不会沦为反对派。

GOD,this is the second time you vanquished me!

天啊,这是第二次你打败了我!

So a kind of strong antagonism permeated in the relations of two countries.

所以两国这一时期的政治关系始终弥漫着一种强烈的对抗情绪。