• 指出,共振核—CF 2—化学不仅第一基团影响,第三位的影响。

    These results indicated that the chemical shifts of central -cf2 - group are not only affected by the first and the second neighboring groups, but also by the third neighboring group.

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  • 由于此物质CF 3具有吸电子能力,所以其氯更易被取代,这就说明此反应理论上是能够发生的。

    Due to the strong electron-withdrawing property of CF3 - group the substitution of ortho-chloro shows a higher probability, implying the in-principle feasibility of the reaction.

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  • 引入苯胺邻位

    Chlorine is introduced into the ortho-position of aniline.

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  • 我们大四舞会拉开序幕后,高兴地发现自己有机会去和男生约会了。连续举办几个夜晚舞会上,我们互相邀请着前往

    W hen my senior prom rolled around, I found myself in the happy position of dating a boy from a neighboring town; we invited each other to our proms, which were on consecutive nights.

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  • 坐在男士无意间听到了WHENIF的谈话。

    The man at the next table couldn't help overhearing WHEN and IF.

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  • 苯酚的生物降解组分的降解基因控制,形成不同代谢途径

    Phenol biodegradation is controlled by multi component genes to form different catabolic pathways of meta position and ortho position.

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  • 随着反应时间延长,有羟基双硝基化以及羟基两个邻位硝基化产物生成。

    Dinitrations occurred at two ortho-positions or both ortho- and para-positions to the hydroxy group with longer reaction time than mononitration.

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  • 阿拉斯加夏威夷最近加入美国两个新州。阿拉斯加加拿大的西北部,夏威夷太平洋

    Alaska and Hawaii are the two newest states in American. Alaska northwestern lies in Canada, and Hawaii lies in the central Pacific.

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  • 阿拉斯加夏威夷最近加入美国两个新州。阿拉斯加在加拿大的西北部,夏威夷太平洋

    Alaska and Hawaii are the two newest states in America. Alaska lies in the northwestern Canada, and Hawaii lies in the central Pacific.

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  • 阿拉斯加夏威夷最近加入美国两个新州。阿拉斯加加拿大的西北部,夏威夷中太平洋。

    Alaska and Hawaii are the two newest states in American. Alaska northwestern Canada, and Hawaii lies in the central Pacific.

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  • 研究表明酰类多元酚可形成络合物络合物铝和棓酰基苯三酚的羟基形成的,稳定的五员螯合结构

    It is show that the complexes of galloyl type hydrolysable tannins with aluminum are formed which involve five-member ring stably formed adjacent hydroxyl groups in galloyl to aluminum atoms.

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  • 测量房地产测量界址精度至关重要直接影响地的面积及其关系

    In the survey of cadastre and real estate, it is very important for position precision of boundary point because it directly influences parcel area and position relationship around it.

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  • 方法指指动脉侧方皮瓣修复创面,以皮瓣血管游离端同患端指节指动脉端端吻合重建患指

    Methods:The pedicle vascular digital flap was harvested and its distal end was anastomosed with the distal digital artery of recipient finger to repair the defect and restore the distal blood supply.

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  • 结果表明,苯胺氨基邻位引入,单体电化学聚合速率显著下降形成聚合物更易水解。

    After chlorine is introduced into the ortho-position of aniline, the polymerization rate of the monomer decreases markedly, the formed polymer is hydrolyzed easily.

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  • 硝基上存在的氢键给体基,与硝基形成分子内氢键。

    Donors such as amine and phenolic groups, when positioned ortho to a nitro group, are always involved in intramolecular hydrogen bonding.

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  • 邻位-取代的苯甲酰基胍,制备方法,作为药物诊断剂的应用含它们的药物。

    Ortho-substd. benzoyl guanidines, their preparing process and use as medicine and diagnostic reagent, and medicine contg. same.

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  • 对于取代络合物ma4b2平面排列三个异构体常见的为有机化学中的、间排列。

    FOR a disubstituted complex, MA4B2, the planar arrangement gives three isomers, the familiar ortho, meta, and para arrangements of organic chemistry.

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  • 迄今为止的研究报道表明,对氯苯胺生物降解只能邻位途径或修饰邻位途径进行。

    Up to date, p-chloroaniline was reported to be biodegraded only through ortho-or modified ortho-cleavage pathway.

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  • 邻位化合物生成五元络合物比由间化合物形成络合物稳定性高,反应速度快。

    The ortho-compound formed penta cyclic compound was more stable that the meta-compound formed hexa cyclic compound, so the reaction rate of the ortho-compound is larger.

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  • 老王便家里要好的朋友——借钱。

    Wang applied to the family's dearest friend, a rich neighbor, for a loan.

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  • 讨论了酚醛树脂合成其它助剂减震性能影响

    In this paper, the synthetic method of high-ortho resol resin and influence of other chemicals ingredients on the adhesive was discussed.

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  • 采用我国海南岛腰果制得的槚如果酚合成了高邻位热固性酚醛树脂,对所合成的树脂结均、固化条件、固化后树脂性能进行了分析

    The paper analyses the structure, curing conditions and the properties of the cardanol resol which can be made from cashew nut oil produced in Hainan Island.

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  • 发现一种简便制备邻位吸电子取代基膦酰基化合物方法

    A simple method of preparation of phosphonic heterocyclic compounds has been found.

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  • SketchUp模型定稿然后肯普返回PS图象处理软件客户创造一个可交付邻位最后插图

    The Sketchup model is finalized and then Kemp returns to Photoshop to create a deliverable ortho and final illustration for a client.

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  • 实验研究一系列N-邻位取代苯基马来酰亚胺的合成。

    In this study we synthesized a series of N-(o-substituted phenyl) maleimides.

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  • 邻位、间氟甲基苯酚都是重要医药农药染料中间体

    The o-, m-, p-trifluoromethyl phenol were important intermediates in medicines, pesticides and dyes.

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  • 发现反应邻位取代为底物的情况下,-氟可以被打断并有效地形成碳-碳键。

    A C-F cleavage reaction was found when using ortho-fluoro substituted benzonitrile, which resulted in the formation of new C-C bond.

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  • 发现反应邻位取代为底物的情况下,-氟可以被打断并有效地形成碳-碳键。

    A C-F cleavage reaction was found when using ortho-fluoro substituted benzonitrile, which resulted in the formation of new C-C bond.

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