Cationics are usually quaternary ammomium salts.
阳离子表面活性剂通常为季铵盐类.
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Moreover , there is a chiral quaternary carbon in the 1 - hydroxyethylidenediphosphonic ( hedp ) ligand.
证实1-羟基乙叉 -1,1-二膦酸配体 ( hedp ) 中的季碳为手性碳原子.
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Iron - nickel - phosphorus - boron quaternary alloy electroless plating on copper panel was described.
在铜基上化学镀铁 - 镍 - 磷 - 硼四元合金.
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Computational experiments have shown that protein primary sequence contains quaternary structure information.
计算实验表明蛋白质一级结构包含着四级结构信息.
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The silicone quaternary was synthesized reaction of - H silicone, unsaturated - ether, chloroacetic acid, dimethylamine.
以低含氢硅油 、 不饱和聚醚 、 一氯乙酸和二甲胺为原料, 制备得阳离子有机硅油.
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Various iodinated strong base quaternary ammonium anion exchange resins were prepared.
制备了数种不同的强碱型阴离子碘化树脂.
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The effects of different quaternary ammonium salts were studied.
研究了季铵盐的种类、结构对插层效果的影响.
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An antistatic agent of polyacrylamide quaternary ammonium compound was designed and synthesized.
设计合成了聚丙烯酰胺季铵盐类的抗静电剂.
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The quaternary excess volumes were predicted by using only binary parameter without any multicomponent parameters.
在不引入任何多元参数的情况下,直接用二元参数预测四元系的超额体积.
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A novel bi - pyridine quaternary ammonium salt cationic surfactants was prepared by acrylic modified rosin.
普通松香通过丙烯酸改性,与氯化亚砜、甲醛、吡啶合成新型吡啶双季铵盐阳离子表面活性剂.
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A great many proteins, especially enzymes, are oligomeric and consequently possess quaternary structure.
很多蛋白质尤其是酶类, 是低聚物,因此拥有四级结构.
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With chlorine and phenols, of categories, like supporting alternative use quaternary more good results.
畜禽消毒剂特点:空气消毒.与含氯、酚类 、 氧化类 、 季铵盐类配套交替使用效果更加佳.
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The electronic structure of a quaternary alloy has been investigated using EHT band calculation method.
用紧束缚能带计算方法(EHT)研究了标题多元合金的能带及电子结构.
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It was pointed out that the quaternary ammonium salt was the most important phase transfer catalyst.
指出了此类合成反应中所采用的重要相转移催化剂是季铵盐类.
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OBJECTIVE To study the synthesis of quaternary ammonium salt derivatives of haloperidol and their vasodilative activities.
目的合成氟哌啶醇季铵盐衍生物及其还原物并研究它们的扩血管活性.
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