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- Phthalocyanines could be separated into three species with chemical valence of central atom. 聚合酞菁按中心原子的化合价可分成三类,其中第一类的研究报道较多。
- In this model the arrangement of bonds around the central atom is considered to depend upon how many valence-shell electron pairs. 在这个模型中,认为围绕中心原子的化学键的排列取决于价层中电子对的数量。
- The effects of tridentate ligand structure, central atom, co-catalyst and supported on property of catalysts are presented. 摘要介绍了三齿配体结构、中心金属原子、助催化剂、负载化等对催化剂性能的影响；
- X-ray indicated that differences in behavior of the group 3A element substituted het- eropolyanions are generally small for a given central atom. x-射线衍射表明;对给定的杂原子在杂多阴离子与不同的3A 主族元素作用中差别不大.
- The effects of tridentate ligand structure, central atom, co catalyst and supported on property of catalysts are presented. 介绍了三齿配体结构、中心金属原子、助催化剂、负载化等对催化剂性能的影响;
- Chelate: Any of a class of coordination or complex compounds consisting of a central atom of a metal (usually a transition element) attached to a large molecule (ligand). 螯合物:一类配位化合物或错合物。它是由一个大分子(配位体)与一个中心金属(通常是过渡元素)原子连结而成。
- In the complex these atoms are each bound to one central atom and not to each other. 在络合物中,这些原子都和中心原子成键,而彼此不成键。
- The interactions between the central atoms M(Zn,Co,Cu,Mn,Cd),the ligands X(Cl,Br,I) and the octadecylammonium ions are discussed according to Pauling's electronegativity scale. 讨论了配位体X（Cl、Br、I）、中心离子M（Zn、Co、Cu、Mn、Cd）和质子化十八胺C18H37NH＋3的关系。
- Such values are central to our way of life. 这些价值对于我们的生活方式是至关重要的。
- She stay in a small hotel near Central park. 她住在中央公园附近的一家小旅馆。
- Choose a central location for your house. 把你的家选在一个便利的地方。
- Buses leave the central bus depot every hour. 每个小时都有公共汽车离开公共汽车中心站。
- In a small hotel near Central Park. 住在中央公园附近一家小旅馆。
- Make sure the central heating is off. 集中供暖设备一定要关掉。
- The area code for central London is0171. 伦敦中心的电话区号为0171。
- We put new central heating in when we moved here. 我们搬到这儿的时候安装了集中供暖设备。
- What's the central thought of this article? 这篇文章的中心思想是什么？
- The train leaves the central station at14:15. 火车14点15分离开中央车站。
- Is your central heating gas or electricity? 你们的集中供热设备是煤气的还是用电的?
- The central or principal vein of a leaf. 中脉中心的或主要的叶脉
