查询词典 lewis

The polymerization rate of benzonitrile catalyzed by Lewis acid and differentmetals was measured, and the activity of metals was in thefollowing decreasing order, magnesium, zinc, sodium, calcium.

发现Lewis酸-金属体系对芳香族腈是一种较好的催化剂，聚合速度比Lewis酸单独催化时有大幅度提高。

Before Harry Potter was even thought of, Lewis Carrol, who was a mathematics don at Christ Church, used his surroundings as inspiration for Alice in Wonderland. JRR Tolkien and CS Lewis were also fellows in this inspirational place.

在罗琳还没构思《哈利波特》之前，Christ Church学院的数学教师Lewis就用这里的场景拍摄了《爱丽思梦游仙境》，许多人随后也采用了这里充满幻想的场景。

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。

Because substituted anilines have Lewis acid or Lewis base group, extractions with complexing agent was conducted.

由于取代苯胺都具有Lewis酸性或Lewis碱性官能团，采用相应的络合剂进行了络合萃取的研究。

From 1998 ... High schooler Rashard Lewis sets the NBA record for "Most Time Spent In The Green Room"-- improbably lasting through the first round, surviving two "Why hasn't Lewis been taken yet?"

从1998年起。。。高中生Lewis创造了NBA的一项记录--在Green Room里呆了最久的人--持续了整个首轮选秀。&为什么Lewis还没被选呢？&

The infrared spectrogram of loaded organic phase illustrated that ethanol and butanol are Lewis bases when they act with hexanoic acid, octanoic acid, etc, and are Lewis acids when they act with TBP, etc.

利用红外光谱对萃取机理进行了探讨，证实了醇与己酸、辛酸等作用时表现出Lewis碱性，而与磷酸三丁酯等作用时表现为Lewis酸性。

The acidity of Lewis acid sites and the basicity of Lewis base sites influence the intensity between water, 1,2-dichloropropane and catalyst. The specific area of catalyst influences the capacity of adsorption.

催化剂Lewis酸位和Lewis碱位的酸碱强度直接影响水、1，2－二氯丙烷与催化剂的作用强度，而催化剂的表面积直接影响吸附量。

There exist Lewis base sites (M=O and M-O-M or M-O-P) and Lewis acid sites on the surface of these catalysts.

催化剂表面的活性基元由Lewis碱位M=O键的端氧和M-O-M或M-O-P键的桥氧位，Lewis酸位M〓组成。

The results showed that there existed Lewis base sites (M=O and M-O-Fe) and Lewis acid sites on the surface of these catalysts.

研究表明，Fe-V-O、Fe-Mo-O、Fe-P-O和Fe-Al-P-O催化剂表面活性基元都是由Lewis碱位（M=O键的端氧和M-O-Fe键的桥氧位）和Lewis酸位组成。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。