查询词典 atom

The four fluorescence peaks are generated separately by the combined actions of the methyl parathion and the acetone. In methyl parathion molecule, there are the transition of n electrons in nitryl, the transition of π electronic structure formed by the oxygen atom and the benzene ring and the transition of n electrons in P=O group. In acetone molecule, there is the transition of n electrons in C=O group.

分析得到，四处荧光峰分别是溶剂丙酮分子中C=O上的n电子跃迁、硝基上的n电子跃迁、甲基对硫磷分子中氧原子与苯环形成的大共轭π电子结构跃迁以及P=S上的n电子跃迁共同作用产生。

In the present paper, from the non-U(1) invariance of the atom-dimer conversion system, we generalize the definition of fidelity to this nonlinear system.

本文，从原子-二聚物分子转化系统的非U(1)对称性出发，将保真度的定义推广到了非线性系统。

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。

In a normal atom, the number of protons is equal to the number of electrons present .

在一个正常的原子中，质子数等于存在的电子数。

If we were ignorant of the structure of the atom, it would be impossible for us to study nuclear physics.

如果我们不知道原子的结构，我们就不可能研究核子物理学。

Theoretical analysis using rate equation and numerical calculations on the cold atom number and loading time agree with the experimental results.

用速率方程进行的理论分析和对冷原子数及装载时间进行的数值计算符合我们的实验结果。

We did so by representing the results of a series of numerical experiments on a one-dimensional model hydrogen atom.

本文将采用数值计算法来求解含时Schrodinger方程，研究在一维氢原子模型中，外加的平行静电场，不同形状的激光脉冲以及原子处于不同初始态对谐波谱线和电离率的影响。

In 3 each zinc atom is coordinated by two tcm anions and two dpyam molecules to form a distorted octahedral geometry. Different from the former two complexes, 3 shows a mononuclear structure.

在3中每个锌与两个三氰基甲烷阴离子，两个2，2'-双吡啶胺分子相配位形成畸变八面体的空间结构。

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。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷