單詞
quaternary
英 [kw?'t??n(?)r?]
美[kw?'t?n?ri]
基本信息
- adj. [數] 四進制的；四個一組的
- n. 四；四個一組
暢通詞匯
實用場景例句
- Cationics are usually quaternary ammomium salts.
- 陽離子表面活性劑通常為季銨鹽類.
辭典例句
- Moreover , there is a chiral quaternary carbon in the 1 - hydroxyethylidenediphosphonic ( hedp ) ligand.
- 證實1-羥基乙叉 -1,1-二膦酸配體 ( hedp ) 中的季碳為手性碳原子.
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- Iron - nickel - phosphorus - boron quaternary alloy electroless plating on copper panel was described.
- 在銅基上化學鍍鐵 - 鎳 - 磷 - 硼四元合金.
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- Computational experiments have shown that protein primary sequence contains quaternary structure information.
- 計算實驗表明蛋白質一級結構包含著四級結構信息.
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- The silicone quaternary was synthesized reaction of - H silicone, unsaturated - ether, chloroacetic acid, dimethylamine.
- 以低含氫硅油 、 不飽和聚醚 、 一氯乙酸和二甲胺為原料, 制備得陽離子有機硅油.
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- Various iodinated strong base quaternary ammonium anion exchange resins were prepared.
- 制備了數種不同的強堿型陰離子碘化樹脂.
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- The effects of different quaternary ammonium salts were studied.
- 研究了季銨鹽的種類、結構對插層效果的影響.
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- An antistatic agent of polyacrylamide quaternary ammonium compound was designed and synthesized.
- 設計合成了聚丙烯酰胺季銨鹽類的抗靜電劑.
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- The quaternary excess volumes were predicted by using only binary parameter without any multicomponent parameters.
- 在不引入任何多元參數的情況下,直接用二元參數預測四元系的超額體積.
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- A novel bi - pyridine quaternary ammonium salt cationic surfactants was prepared by acrylic modified rosin.
- 普通松香通過丙烯酸改性,與氯化亞砜、甲醛、吡啶合成新型吡啶雙季銨鹽陽離子表面活性劑.
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- A great many proteins, especially enzymes, are oligomeric and consequently possess quaternary structure.
- 很多蛋白質尤其是酶類, 是低聚物,因此擁有四級結構.
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- With chlorine and phenols, of categories, like supporting alternative use quaternary more good results.
- 畜禽消毒劑特點:空氣消毒.與含氯、酚類 、 氧化類 、 季銨鹽類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.
- 用緊束縛能帶計算方法(EHT)研究了標題多元合金的能帶及電子結構.
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- It was pointed out that the quaternary ammonium salt was the most important phase transfer catalyst.
- 指出了此類合成反應中所采用的重要相轉移催化劑是季銨鹽類.
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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銨鹽衍生物及其還原物并研究它們的擴血管活性.
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quaternary相關單詞