查询词典 Lewis base

In 1952, while Lewis was immersed in writing The Chronicles of Narnia, Lewis met Joy Davidman Gresham.

1952年，而刘易斯是沉浸在写作纳尼亚传奇，刘易斯满足欢乐Davidman格雷沙姆。

Holyfield and Lewis stepped on the scale at Madison square Garden 0n Wednesday. Lewis weighed

星期三，霍利菲尔德和刘易斯在麦迪逊花园广场称了体重，刘易斯重246磅，霍利菲尔德体重215磅。

The literature of Oxford dons, from Lewis Carroll to Tolkien and CS Lewis, suggests that a certain infantilism is admired.

从刘易斯·卡罗尔到托尔金再到C.S。

METHODS: Three different MBP peptides(MBP6886, 8799, and the nonencephalitogenic peptide 110128) were synthesized and administrated nasally to Lewis rat on day11, 10, 9, 8 and 7 prior to immunization with the guinea pig MBP + CFA, which was used to induce EAE. The protective effect on Lewis rat from EAE by the MBP peptides was evaluated.

合成3条不同的碱性髓鞘蛋白多肽（MBP6886、 8799和非致脑炎性肽段110128），在用豚鼠MBP加弗氏完全佐剂免疫Lewis大鼠前的11、 10、 9、 8和7 d，经鼻黏膜分别给予MBP多肽，观察其对EAE的保护作用。

New Hampshire: Josiah Bartlett, William Whipple, Matthew ThorntonMassachusetts: John Hancock, Samual Adams, John Adams, Robert Treat Paine, Elbridge GerryRhode Island: Stephen Hopkins, William ElleryConnecticut: Roger Sherman, Samuel Huntington, William Williams, Oliver WolcottNew York: William Floyd, Philip Livingston, Francis Lewis, Lewis MorrisNew Jersey: Richard Stockton, John Witherspoon, Francis Hopkinson, John Hart, Abraham ClarkPennsylvania: Robert Morris, Benjamin Rush, Benjamin Franklin, John Morton, George Clymer, James Smith, George Taylor, James Wilson, George RossDelaware: Caesar Rodney, George Read, Thomas McKeanaryland: Samuel Chase, William Paca, Thomas Stone, Charles Carroll of CarrolltonVirginia: George Wythe, Richard Henry Lee, Thomas Jefferson, Benjamin Harrison, Thomas Nelson, Jr., Francis Lightfoot Lee, Carter Braxton

因此，我们，集合在大陆会议下的美利坚联合邦的代表，为我们各项正当意图，吁请全世界最崇高的正义：以各殖民地善良人民的名义并经他们授权，我们极为庄严地宣布，这些联合一致的殖民地从此成为、而且是名正言顺地成为自由和独立的国家；它们解除效忠英国王室的一切义务，它们和大不列颠国家之间的一切政治关系从此全部断绝，而且必须断绝；作为自由独立的国家，它们完全有权宣战、媾和、结盟、通商和采取独立国家理应采取和处理的一切行动和事宜。

His town of Sauk Centre appears over and over again in Lewis' satire of provincial small-town American life, as seen for instance, in Main Street, Lewis' first major success.

他的中心镇Sauk似乎一遍一遍在刘易斯的讽刺省小城镇的美国人的生活，看例如，在主街，刘易斯的第一次重大成功。

To be different from the already chloromethylation catalyst, it has a certain amount of moisture wet, which will not produce huge amounts of doughtic cancerogenic chloromethyl methyl ether during and after the reaction.4,4\'-bisbiphenyl, 1,4-bisbenzene, 1,4-bis(chloro- methyl)-2,5-dimethylbenzene, 1,5-bis-2,4-dimethylbenzene, 4-(chlor- omethyl)-1,2-dimethylbenzene, 1,2-bis-4,5-dimethylbenzene, 5,8-bis-1,2,3,4-tetrahydronaphthalene, 3,3\',5-tris-4,4\'-bisbiphenyl and 3,3\', 5,5\'-tetrakis-4,4\'-bisbiphenyl were synth- esized by using this new catalyst. Results indicated that when the reaction temperature was 55～60℃, the reaction time was 12h, the catalyst which consists of the concentration of 80%H_2SO_4, HAc and Lewis acid, the amount of Lewis acid 0.15 mol(nLewis:nbiphenyl=1.5:1), yield of biphenyl chloromethylation product 4,4\'-bis(chrolomethylbiphenyl can reach a maximum 85%.

采用这种催化体系完成了4，4′-二氯甲基联苯、对二氯甲基苯、1，4-二氯甲基-2，5-二甲基苯、1，5-二氯甲基-2，4-二甲基苯、4-氯甲基-1，2-二甲基苯、1，2-二氯甲基-4，5-二甲基苯、5，8-二氯甲基-四氢萘、3，3'，5-三氯甲基-4，4'-二甲基苯和3，3'，5，5'-四氯甲基-4，4'-二甲基苯的合成，结果表明：在反应条件为：反应温度55～60℃，反应时间12h，选择80%H_2SO_4、冰醋酸和Lewis酸为催化剂，反应最佳反应Lewis酸用量是0.15mol(和原料比为1.5：1)，反应效果最好，联苯氯甲基化产物(4，4′-二氯甲基联苯)收率为85%；在反应条件为：反应温度70℃，反应时间8h，80%H_2SO_4、冰醋酸和Lewis酸为催化剂，反应最佳反应Lewis酸用量是0.1mol(和原料比为1：1)时，反应效果最好，苯的氯甲基化产物收(来源：ABd0C论文eded网www.abclunwen.com)率为75%；在反应条件为：在反应条件为：反应温度40℃，反应时间10h，60%H_2SO_4和Lewis酸为催化剂，反应最佳反应Lewis酸用量是0.1mol(和原料比为1：1)时，反应效果最好，对二甲苯氯甲基化产物(1，4-二氯甲基-2，5-二甲基苯)收率为78.5%；在反应条件为：反应温度35℃，反应时间10h，60%H_2SO_4、冰醋酸和Lewis酸为催化剂，反应最佳反应Lewis酸用量是0.1mol(和原料比为1：1)时，反应效果最好，间二甲苯氯甲基化产物(1，5-二氯甲基-2，4-二甲基苯)收率为81.5%。

Rate enhancement in ligand-free palladium catalyzed Suzuki reaction by Lewis acid promoters;2. Metoprolol was synthesized with isopropylamine and 4-(2-methoxyethyl)phenyl glycidyl by different Lewis acid .

Lewis酸催化对甲氧乙基苯基缩水甘油醚与异丙胺的反应得到美托洛尔，考察不同的催化剂、反应温度、反应时间对反应的影响。

S. Lewis' Narnia books, great though they may be, are not in this strict sense mythopoeic: Lewis does not want to create a self-consistent secondary world, but rather a world in which all the varieties of mythology meet and find their home.

Lewis是The Inklings的一员，纳尼亚是他所写的畅销奇幻小说，共七本）虽然是伟大的成就，但它们并不是严格意义上的神话创作，明白这一点很重要。Lewis并不想创造一个自我连贯的第二世界，而是建造了一个可以容纳所有神话因素的大本营。

Different from the Lewis acidity nature of SO4(superscript 2-)/ZrO2/MCM-41, SO4(superscript 2-)/TiO2 and S2O8(superscript 2-)/TiO2 behave mainly Brnsted acidities. The strongest Brnsted acid sites are formed on SO4(superscript 2-)/TiO2 promoted with H2SO4, while Lewis acid sites on S2O8(superscript 2-)/TiO2 are even stronger than those on SO4(superscript 2-)/ZrO2/MCM-41, and the former which are generated when persulfate solution is used as sulfating agent.

与SO4(上标 2-)/ZrO2/MCM-41主要表现为Lewis酸性不同，SO4(上标 2-)/TiO2和S2O8(上标 2-)/TiO2主要以Brnsted酸性为主，其中采用硫酸为促进剂制备的SO4(上标 2-)/TiO2具有最强的Brnsted酸性，而采用过硫酸根作为促进剂则使S2O8(上标 2-)/TiO2产生较SO4(上标 2-)/ZrO2/MCM-41更强的Lewis酸中心。

As a dominant party,CPC government should play a guardian,supervisee and guarantee role to overcome all the difficulties in the development of charitable cause and bring it into full play in the establishment of harmonious society on policies and regulations basis.

在中国共产党的文献中第一次把发展慈善事业提到&最广泛最充分地调动一切积极因素，不断提高构建社会主义和谐社会的能力&的高度来认识。近年来，社会学界对慈善事业的理论专著发表较多，有鉴于此，笔者不揣浅陋，谈谈自己的认识和见解。

Flow through the land, the land of the scale of operation allows the effectiveness of the land may be raised.

通过土地的流转，土地的规模经营可以让土地的效益得到提升。