查询词典 atom structure

In this paper, quantum theory, the use of time evolution operator obtained by the first method for the system density operator of any time, and atomic reduced density matrix, and the atomic dipole squeezing conditions, numerical study of the mixed state -type atom of the three-level with single-mode optical field coherent interaction of atomic dipole squeezing effect.

本文采用全量子理论，运用时间演化算符方法先求出所求系统任意时刻的密度算符，和原子的约化密度矩阵，以及原子偶极压缩的条件，数值计算地研究了混合态型3能级与单模相干光场相互作用时原子的偶极压缩效应。

The atomic formula is called atom for short in predicate calculus .

在谓词演算中，有时将原子公式简称为原子。

The atomic formula is called atom for short in predicate calculus.

原子；组合电路单元；基本单位

In this thesis we have studied the lattice vibration of one dimensional atomic chain, researched the lattice vibration and the location of the localized modal while adding the impurity atom.

本文主要对一维原子链的晶格振动以及加入杂质原子后晶格的振动情况与局域振动模的分布情况进行了细致的研究。

From c. 1900 until 1961, the reference standard was oxygen, with a value of 16, and the unit of atomic mass was defined as 1/16 the mass of an oxygen atom.

大约从1900～1961年，氧曾作为原子量的参考标准，那时指定氧的原子量为16，因而原子质量单位定义为氧原子质量的1/16。

Bohr's proposal that the atom existed only in a discrete set of energy states still remains relevant, known as the Bohr atomic model, though it has been replaced scientifically.

玻尔的提议，即原子只存在于一个独立的国家的能源仍然是相关的，被称为玻尔原子模型，虽然它已取代科学。

A positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus.

带正电的氢离子，即常态的氢原子核。

The atomic number states the number of protons in an atom of that element.

原子数表示该元素的原子中的质子数。

Besides, influence of atomic number on the numbers of residual bond and short-range order atom also was analysed.

同时，分析了原子序数对熔体中剩余键数和近程有序原子数的影响。

To the chemist the "kind" of atom is specified by its atomic number, since this is the property that determines its chemical behavior.

在化学中原子的"种类"被指定为它的原子序，因为它的属性决定了它的化学性质。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！