The commutation relations between the momentun differential 0 operators ρ_r,ρ_θ and ρ_φ and α_r,α_θ and α_φ,and the unit vectors e_r,e_θ and e_φ are given,further the expressions of relativistic momentum components in spherical coordinate system are given.
还给出了动量微分算符^Pr,^Pθ,^Pφ分别与αr,αθ,αφ及坐标系单位矢量er,eθ,eφ的对易关系。
The first method uses the commutation relation of raising and lowering operator;the second method is called the second quantization.
介绍了量子光学中常见的双光子纠缠态关联函数的两种求法,第一种方法是利用产生湮没算符的对易关系来求解;第二种方法是应用"二次量子化"的方法来计算,这种方法不需要用对易关系,计算简便。
On the basis of Heisenberg model in the crystal lattice spinning system, we have worked out the commutation relations, under the condition of capital s, between angular momentum l in one dimensional quantum antiferromagnetic chains and Neel vectors, and also deduced Lagrangina density expression about the lattice spinning in the forms of generalized coordinate and generalized momentum.
以晶格自旋体系的Heisenberg模型为依据,计算了大s的极限情况下,一维量子反铁磁链转动生成元l与Neel矢量间的对易关系,求出了以广义坐标和广义动量形式表示的格点自旋间的拉氏函数密度表示。
Keeping the commutation relations of the position and momentum operators fixed, the general possibilities of the operators are considered.
在保持坐标和动量算符所满足的对易关系不变的情况下 ,该文讨论了算符所能取的一般形式 ,它们依赖于参数 。
It is proved that the equivalence for two definitions of antisymmetric relation, and discussed their application.
对“反对称关系”2个定义的等价性进行了证明,并讨论了其应用。
The Commutation Relations and the N-particle State for he Three Component Bariev Model under Open Boundary Condition;
三分量开边界Bariev模型的基本对易关系式及多粒子态波函数
Relationship between Parental Rearing Pattern and Simple Reponse of Middle School Students.;
中学生父母教养方式与简易应对方式的关系
Commercial Relations Branch [Trade Department]
对外贸易关系科〔贸易署〕
Commercial Relations Registry [Trade Department]
对外贸易关系组〔贸易署〕
Trade and External Relations Committee
贸易和对外关系委员会
Commercial Relations and Control Group [Trade Department]
对外贸易关系及管制部〔贸易署〕
The Trade Department is responsible for the HKSAR's commercial relations with trading partners.
贸易署负责香港特区对外贸易关系。
Overlapped Free Trade Areas and the Agreements of Multilateral Trade;
重叠式自由贸易区与多边贸易协议的关系
Regional Pattern of World Trade and the Development of Trade between China and Germany;
世界贸易的区域发展模式及中德贸易关系
In an interactive display, the user should be able to selectively turn off and on the variables to make comparisons easier and correlations (causality) clearer.
在交互式显示中，用户可选择开启或关闭变量，使对比更容易，相关性（因果关系）也更清晰。
Influence of Related Parties Relationship and Trade on Financial Analysis;
关联方关系及交易对财务分析的影响
A Research on the Innovation of Customs Supervision Mode Towards Processing Trade;
创新海关对加工贸易的监管模式研究
Empirical Analysis of the Relationship between Foreign Trade, Domestic trade and Guangdong’s Economic Growth;
对外贸易、国内贸易与广东省经济增长关系解析
On the Benefit Between Domestic Interregional Trade and International Trade;
试论国内区际贸易与对外贸易利益的关系
The Development of Russia-U.S Trade Relationship and Its Impact on Sino-Russia Trade;
俄美贸易关系的发展及其对中俄贸易的影响
The Effects and Countermeasure of Trade Relatives and "The Accelerated Tiriff Elimination on Fruits and Vegetables Agreement" to Trading in China-Thailand;
中泰贸易关系及果菜“零关税”的实施对两国贸易的影响和对策
Almanac of China's Foreign Economic Relations and Trade
中国对外经济关系和贸易年鉴
Establishing business relations between us will be to our mutual benefit.
我们之间建立贸易关系将对双方有利。