查询词典 labelled atoms

Monosaccharides are classified according to (1) the number of carbon atoms present in the molecule and (2) whether they contain an aldehyde or keto group, thus a monosaccharide containing six carbon atoms is called hexose; a monosaccharide containing an aldehyde group is called aldose; and one containing a keto is called a ketose.

单糖的分类按照（1）分子中碳原子的数目（2）是否含有一个醛基或酮基，因此一个单糖含有6个碳原子叫做己糖；一个单糖含有醛基叫醛糖；含有酮基叫酮糖。

Within the WBEPM theory,the transition probabilities and oscillator strengths of some heavier and light atoms and ions are investigated.We also used the conceptions of spectrum-level-like series and iso-spectrum-level series to study the energy levels of some atoms.Based on the previous work,we used double generalized Laguerre polynomial to calculate the value for the ground-state energy of He atom.

本论文在郑能武教授提出的最弱受约束电子势模型理论基础之上，对若干较重和轻原子离子的跃迁几率和振子强度作了研究；引入类光谱态能级序列的概念和等光谱态能级序列的概念研究了一些原子离子的能级性质；并在前人工作的基础上用双广义拉盖尔函数对氦原子的基态能量做了计算。

The smaller metalloid atoms of the alloys might fit into holes in the dense random-packed structure of the larger metal atoms.

合金中非金属的小原子可能填进由大原子随机填塞形成的紧密结构中。

In addition, the changes of molecular geometry, atomic natural charge and IR spectra of the reaction system during the crucial step of O to attack H showed that the rupture of C—H bond and the formation of O—H bond were concerted stepwise. Obvious changes of atomic natural charge happened to atoms C(1), H(11), O(28), O(29) and N(27). The bond lengths and bond angles related to these atoms were also varied greatly.

NO2中O进攻1-H决速反应过程中，分子几何、原子自然电荷及IR光谱变化表明， C—H键的断裂和N—H键的形成是一个协同过程；参与新键形成和旧键断裂原子C(1)， H(11)， O(28)， O(29)和N(27)的原子自然电荷及与其相关的键长、键角有明显的变化。

It is essential to trap metastable noble gas atoms with high efficiency in the studies of interactions between cold atoms and in dating applications through the detection of radioactive isotopes.

高效率地冷却和囚禁亚稳态惰性元素原子，可用以研究冷原子间的相互作用，以及通过对放射性同位素的检测实现样品年代测定。

The metal ions form ionic bonds, which are nondirectional, with oxygen atoms that previously had been bonded rigidly to specific Si atoms.

金属离子与氧原子形成无方向性的离子键，而氧原子之前一直牢固结合在特殊的硅原子上。

The Molar conductivity indicates that all the complexes are nonelectrolyte. IR spectra show the ligand is bonded with RE ion through its oxygen atom in hydroxyl group of phenol; NO3 is coordinated as a symmetrical chelating bidentate group; the coordinated atoms of DMF and DMSO are the oxygen atoms in carbonyl and sulfoxyl groups. Fluorescence spectrum suggests that the Tb3+complexes have characteristic luminescence and its fluorescence intensity is enhanced after doping with La3+, Gd3+, Y3+, influence of doping ions and neutral ligands have also been discussed.

摩尔电导率表明，所有配合物均为非电解质；红外光谱及核磁共振氢谱表明，对叔丁基杯[8]芳烃通过酚羟基的氧原子与稀土离子配位；硝酸根为双齿螯合配位；DMF和DMSO则分别通过羰基氧和亚砜基氧与稀土离子配位；配合物的荧光光谱表明，所有Tb的配合物具有较强的特征荧光，掺杂La~(3+)、Gd~(3+)、Y~(3+)离子对Tb~(3+)的荧光有较强的增强作用。

See other iron oxides: ferric oxide , iron oxide by the structure: ferrous oxide is cubic crystal system (similar to the NaCl crystal structure), each iron atom surrounded by six oxygen atoms connected to form octahedral shape coordination of each oxygen atoms around ...

参见铁的其它氧化物：三氧化二铁、四氧化三铁结构：氧化亚铁属于立方晶系（类似于氯化钠晶体结构），每个铁原子周围连接着6个氧原子形成八面体型配位，每个氧原子周围。。。

Each Cu atom is coordinated by four nitrogen atoms from two different dpphens and two oxygen atoms from fumarate with a distorted octahedron geometry.

配合物中每个Cu离子与来自两个dpphen的4个N和一个fum的2个O配位，形成畸变的八面体结构单元。

Skutterudites are p-type semiconductor. The high carrier concentration is caused by the substitution of iron atoms to cobalt atoms in skutterudite.

La〓Fe〓CoSb〓热电材料均为P型半导体，具有较高的载流子浓度，大量的载流子是由于方钴矿中铁对钴取代的结果。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？