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一当量
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  one-equivalent
     Dye Release Compound and One-Equivalent Coupler
     染料释放化合物及一当量成色剂浅谈
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  “一当量”译为未确定词的双语例句
     2. One-pot deprotection-oxidation-Wittig reaction of silyl ethers in the presence of an equivalent of acetic acid, MnO2 and stable Wittig reagents generated the corresponding a, p-unsaturated esters.
     2.在一当量的醋酸和稳定的Wittig试剂存在下,MnO_2作为氧化剂,硅醚经历脱保护—氧化—Wittig反应,“一锅法”转化成α,β-不饱和酯。
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     Suppose that the interaction of NaOH with surface acidic sites in aqueous solution occurs according to the following stoichiometric relation: one mole Bronsted acid reacts with one mole of NaOH, and one mole of Lewis acid uses up two moles of NaOH, while both one mole Bronsted and one mole Lewis acids react with one mole of butylamine in nonaqueous solution, therefore, the surface concentration of both Lewis and Bronsted sites can be determined by butylamine titration and NaOH neutralization.
     中和同样数量的酸性中心所消耗NaOH的当量数比正丁胺多,其差值与Lewis酸的含量有关。 假定NaOH与LaHY表面上酸性中心作用的机理为:一当量Bronsted酸与一当量NaOH作用,而一当量Lewis酸消耗两当量NaOH,则可借助正丁胺滴定和NaOH中和法测定Bronsted酸和Lewis酸的含量。
短句来源
     The obtained 1 ,4-dilithium salt can react with trimethylchlorosilane to give 1,4-dialkylsilyl derivatives.
     经多方实验,只有用N-(苯基·乙亚基)苯甲胺与一当量的正丁基锂和二异丙基胺锂反应得到1,4-二碳负离子,硅烷化得到1,4-二硅烷基衍生物。
短句来源
     In the latter case, epicyclic gearing is transformed into an equivalent shaft system and a general field matrix is given between input and ouput inertia.
     前者可以使行星轮系最终转化成一当量轴系,输入、输出惯量之间存在一“等效场阵”; 后者使用了行星轮系扭振计算的详细模型,考虑了轮齿平均啮合刚度及行星轮销轴横向弯曲刚度的影响。
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     This paper, according to the second law of therwodynamics, put forwarda new concept "Equivalent Temperature" in comparing CO2 cycle with other transcriticalrefrigerants.
     根据热力学第二定律,本文提出比较各类循环的统一方法一当量温度法。
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     一.
     .
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     L-1 h for buccal tablet and syrup respectively .
     L’.
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     A New Method for Calculating the Equivalent Friction Coefficient of V-belt Drive
     种计算V带当量摩擦系数的新方法
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     Dye Release Compound and One-Equivalent Coupler
     染料释放化合物及当量成色剂浅谈
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     EQUIVALENT DAMAGE CONVERSION
     当量损伤折算
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  one equivalent
One equivalent of sodium diethyl phosphite reacts with 3,4-bis(chloromethyl)furan to give a mixture of 3-and 4-phosphorylated products in a 4.5:1 ratio in a low yield.
      
Reduction of 9,10-dicyanoanthracene with one equivalent of metallic potassium in liquid ammonia at -33°C gives a product which almost does not react with butyl bromide.
      
The absorption maximum of the native enzyme II at 400 nm decreased in the presence of one equivalent of hydrogen peroxide.
      
In particular, it is shown that there is an infinite number of equivalent circuits of unbalanced loads supplied with a symmetrical voltage but there is only one equivalent circuit if the voltage is asymmetrical.
      
Analysis of DNA reassociation kinetics suggested the presence of one equivalent of the phage I3 genome within the M.
      
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  one-equivalent
The kinetics of oxidation of L-Cysteine in aqueous HClO4 medium were studied using a one-equivalent oxidant, hexachloroiridate(IV).
      


The nature of the acidic surface of LaHY zeolite and the interaction ot its acidic sites with NaOH have been studied by butylamine titration and pyridine-IR method. Moles of NaOH consumed to neutralize the same amount of acidic sites are always greater than those of butylamine, this difference is due to the surface concentration of Lewis sites. Suppose that the interaction of NaOH with surface acidic sites in aqueous solution occurs according to the following stoichiometric relation: one mole Bronsted acid reacts...

The nature of the acidic surface of LaHY zeolite and the interaction ot its acidic sites with NaOH have been studied by butylamine titration and pyridine-IR method. Moles of NaOH consumed to neutralize the same amount of acidic sites are always greater than those of butylamine, this difference is due to the surface concentration of Lewis sites. Suppose that the interaction of NaOH with surface acidic sites in aqueous solution occurs according to the following stoichiometric relation: one mole Bronsted acid reacts with one mole of NaOH, and one mole of Lewis acid uses up two moles of NaOH, while both one mole Bronsted and one mole Lewis acids react with one mole of butylamine in nonaqueous solution, therefore, the surface concentration of both Lewis and Bronsted sites can be determined by butylamine titration and NaOH neutralization. Results of the infrared spectra of adsorbed pyridine support well the above supposition.It is found that the acidic surface of LaHY zeolite is not homogeneous and the two kinds of acidic sites are of different strength. Cumene cracking on LaHY shows that the cracking reaction occurs on the acidic sites of different strength, but their contribution to the overall activity is different and depends on the reaction temperature.

用正丁胺滴定和吡啶—红外光谱法,研究了LaHY表面上酸性中心与NaOH的作用机理及酸性表面性质。NaOH与LaHY表面上酸性中心作用的计量比与正丁胺滴定时不同。中和同样数量的酸性中心所消耗NaOH的当量数比正丁胺多,其差值与Lewis酸的含量有关。假定NaOH与LaHY表面上酸性中心作用的机理为:一当量Bronsted酸与一当量NaOH作用,而一当量Lewis酸消耗两当量NaOH,则可借助正丁胺滴定和NaOH中和法测定Bronsted酸和Lewis酸的含量。红外光谱测定的结果支持这一观点。 研究结果还表明,LaHY表面的酸性分布是不均匀的,异丙苯裂解反应是在不同强度的酸性中心上进行的。不同强度的酸性中心对总活性的贡献不同,而贡献的大小又与反应温度有关。

The formation of 1,4-dianioh of N-(methylbenzylidene) benzylamine occurs in the reaction of this compound with 1 equiv of n-butyllithium plus 1 equiv of LDA in dry tetrahydrofuran. The obtained 1 ,4-dilithium salt can react with trimethylchlorosilane to give 1,4-dialkylsilyl derivatives.

本文报道合成N-(苯基·乙亚基)苯甲胺的二碳负离子的新方法。经多方实验,只有用N-(苯基·乙亚基)苯甲胺与一当量的正丁基锂和二异丙基胺锂反应得到1,4-二碳负离子,硅烷化得到1,4-二硅烷基衍生物。

In this paper both system matrix method and transfer matrix method are used for the torsional vibration calculation of the con-speed gearbox in shaft-driven generator system. In the former ease, a detailed model for the analysis of the epieylie gearing is proposed, and the effects of gear tooth stiffness and the planet wheel spindle elastisity are investigated. In the latter case, epicyclic gearing is transformed into an equivalent shaft system and a general field matrix is given between input and ouput inertia....

In this paper both system matrix method and transfer matrix method are used for the torsional vibration calculation of the con-speed gearbox in shaft-driven generator system. In the former ease, a detailed model for the analysis of the epieylie gearing is proposed, and the effects of gear tooth stiffness and the planet wheel spindle elastisity are investigated. In the latter case, epicyclic gearing is transformed into an equivalent shaft system and a general field matrix is given between input and ouput inertia.

轴带发电机系统的扭转振动对于内燃机设计者来说是一个新的问题。计算轴带发电机轴系的扭转振动,需要切实地考虑发电机吸收功率对柴油机激扰力矩的贡献。实测结果证实了这一点。关于轴带发电机恒速齿轮箱的扭转振动计算,本文采用了传递矩阵和系统矩阵两种方法。前者可以使行星轮系最终转化成一当量轴系,输入、输出惯量之间存在一“等效场阵”;后者使用了行星轮系扭振计算的详细模型,考虑了轮齿平均啮合刚度及行星轮销轴横向弯曲刚度的影响。

 
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