cation

英 [ˈkætaɪən] 美 [ˈkætaɪən]

n.  正离子; 阳离子

复数:cations

化学

BNC.29210 / COCA.30355



牛津词典

noun

  1. 正离子;阳离子
    an ion with a positive electrical charge

    双语例句

    1. Ionic liquids ( ILs) are a new molten salts system that consist of special cation and anion at room temperature.
      离子液体是由一种特定阳离子和阴离子构成且在室温或近于室温下呈液态的熔盐体系。
    2. The majority of Web applications in current state-of-the-art cloud services employ usernames and passwords as authenti ­ cation mechanism.
      当前最新的云计算服务中的大多数都采用了用户名和密码的身份验证机制。
    3. The resultant ionized bond can be cleaved by a hemi-heterolysis process, affording a cation and a neutral radical.
      生成的离子化键能由半异裂的过程而开裂,提供一个正离子和一个中性的游离基。
    4. I believe that one must have a cation for teaching.
      我相信一个人必须有教书的天分。
    5. Ion exchange equilibrium of neutral amino acids on732 strong acid cation exchange resin in non buffer systems were studied and an equilibrium model was proposed.
      研究了非缓冲体系中性氨基酸在732型强酸性阳离子交换树脂上的离子交换平衡,并提出了平衡模型。
    6. Starch-based cation microspheres preparation and methylene blue on the adsorption research
      淀粉基阳离子微球的制备及对亚甲基蓝的吸附研究
    7. Study on Modified Cation Exchange Resin and Its Application for Butylene Hydration
      改性阳离子交换树脂的研究及在丁烯水合反应中的应用
    8. The experimental method of triphenyl methyl radical, triphenyl methyl cation and triphenyl methyl anion were reviewed.
      介绍了三苯甲基自由基、三苯甲基正离子和三苯甲基负离子的实验方法。
    9. The ion exchange between mixed water and unconsolidated deposits inside caves is characteristic of cation exchange adsorption.
      而混合水与岩溶空间内的松散沉积物间的各种离子交换作用主要是阳离子交换吸附。
    10. The haemolymph cation levels were held by controlled excretion of the cations.
      血淋巴中阳离子水平受阳离子外泌的控制。
    11. The clay cation exchange capacity is affected by 2:1 type Clay mineral content.
      粘粒阳离子交换量的高低与2:1型粘土矿物含量的多少相吻合。
    12. Effect of Cation and pH Value on Dispersivity of Clay in the Medium Environment
      介质环境中阳离子和酸碱度变化对粘土分散性的影响
    13. Ion pairs with different structure of either dye anion or onium cation have different properties.
      染料母核和碘翁阳离子的结构均对离子对体系的性质有影响。
    14. Bentonite is broadly used in landfill anti-seepage system for its well water swelling, fine absorption and cation exchange.
      膨润土因其良好的吸水膨胀性、吸附性和阳离子交换性能而被应用于填埋场的防渗系统。
    15. Effect of amounts of resin particles on performance of cation exchange resin/ PES hybrid membranes
      树脂颗粒填充量对阳离子交换树脂/聚醚砜杂化膜性能的影响
    16. In an ionic solid, a cation – vacancy and cation – interstitial pair.
      在离子固体中的阳离子-空位对和阳离子-间隙原子对。
    17. This cation feels the repulsive force of the cation over here.
      这一个阳离子受到了来自,另一阳离子的排斥力。
    18. The possibility of preparation of methylal from methanol and formaldehyde through slurry catalytic distillation catalyzed by acidic cation exchange resin with large size pores is discussed.
      研究了以甲醇和甲醛为原料,以大孔径强酸性阳离子交换树脂为催化剂,通过浆料催化精馏工艺制备甲缩醛的可行性。
    19. The non-isothermal thermal decompsition reaction kinetics of powdered sodium polystyrene sulfonate cation exchange resin was studied by DSC method.
      用DSC法研究了粉状聚苯乙烯磺酸钠阳离子交换树脂受热反应的非等温动力学。
    20. The effect of different cation surface active agent on apparent viscosity of HPAM has been studied.
      研究了不同的阳离子表面活性剂对部分水解聚丙烯酰胺(PAM)液中的表观粘度的影响。
    21. It analyzes the prospects of appli cation to pests of IPM.
      分析了它们在害虫综合治理中的应用前景。
    22. Influences of Cation Species on Adsorption and Desorption of Oxytetracycline in Two Typical Soils of China
      阳离子类型对土霉素在2种土壤中吸附-解吸影响
    23. This is the valence, the charge on the cation times I will common factor this.
      这是价电子,阳离子的电荷乘以,共同因子。
    24. Objective To explore the possibility of achieving the highest resolution by using combination of anion and cation exchange chromatography.
      目的:探索以阴、阳离子交换色谱串接组合为方式,进行高分辨率分离纯化蛋白质的可行性。
    25. Identification of Serum Polypeptide and Protein Captured with Weak Cation Exchange Beads by LTQ and SELDI-TOF Mass Spectrometry
      LTQ和SELDI-TOF质谱对弱阳离子磁珠捕获的血清多肽和蛋白的鉴定
    26. Effect of Cation Surfactant on Vapor-Liquid Equilibrium between Toluene and Water
      阳离子表面活性剂对甲苯与水间气-液平衡关系的影响
    27. Interaction between 1-Ethyl-3-Methyl-Imidazolium Cation and Asparagine Anion
      1-乙基-3-甲基咪唑阳离子与天冬酰胺阴离子的相互作用
    28. A new method used to separate and purify lysozyme from egg white by high performance cation exchange chromatography has been established.
      建立了用高效阳离子交换色谱分离纯化蛋清中溶菌酶的新方法,讨论了纯化的工艺条件。
    29. An increase in cation exchange capacity of the tissue should be observed.
      可以观察到植物组织中阳离子置换能力的提高。
    30. Relationship of vapor-liquid equilibrium between volatile organic compounds and cation surfactant solutions
      挥发性有机物与阳离子表面活性剂溶液间气液平衡关系

    英英释义

    noun

    1. a positively charged ion