Mechanisms such as vacuum fluctuations, radiation reaction, or a combina-tion of them have been put forward to explain why spontaneous emission occurs.
真空涨落，辐射反作用，或者二者的联合被提出来解释自发发射的原因，在Heisenberg图象方法中，物理解释的不确定性源于原子和场不同对易算符次序的选择。
In quantum radiation theory, many physical observables always change with time and the cause is attributed to contributions of vacuum fluctuations and radiation reaction.
在量子辐射理论中,人们把物理量的变化归结为真空涨落和辐射反作用两部分的贡献,如果一个原子处在量子场中,那么原子的各个物理量的变化就是由这两者引起的。
It is generally considered that there exists in quantum radiation theory an in-determination in the separation of the respective effects of cacuum fluctuations and radiation reaction.
在量子辐射理论中,一直以来人们普遍认为真空涨落与辐射反作用的贡献是不确定的。
Counterconditioning:Conditioning intended to replace a negative response to a stimulus with a positive response.
对抗条件反射作用:意在用肯定反应代替对某刺激产生的否定反应的条件反射作用.
Through reflection, it may be proved that light always travels in straight lines.
通过反射作用，能够证明光总是直线传播的
POLARIZATION REFLECTION EFFECT OF PLANE ROUGH SURFACE UNDER VERTICAL OBSERVATION
垂直观测时水平粗糙地表偏振反射作用研究
Reflection, refraction, Snell's law, critical angle, Brewster's angle, reflection and transmission coeffs.
2反射，折射，司涅尔定律，极限角，全反射角，反射与穿透的交互作用。
Electromagnetic theory was able to predict the mechanism of the reflection.
电磁理论能够推算出反射的作用过程。
DN2P - serves as a reverse mapping mechanism for the subscriber databases.
DN2P -- 作为用户数据库的反向映射机制。
Applying Conditional Reflection Correctly and Improving the Quality of Wushu Motions;
合理运用状态反射 提高武术动作质量
PAY MORE ATTENTION.TO STATIC REFLEX IN TECHNICAL TEACHING OF PHYSICAL EDUCATION;
体育教学应重视“静位反射”的作用
The electromagnetic mass is another effect of the time rate of change of radiant reacting force.
电磁质量是辐射反作用力变率的另一作用效果。
The water vapor and dust particles also serve to reflect the rays of the sun.
水蒸气及灰尘微粒也起到反射太阳光的作用。
It is well known that there are reciprocal actions in the simplest reflexes.
大家知道，即使在最简单的反射中也有交互作用。
AIM: To study the effect of Radix Astragali injection on the airway reactivity.
目的:探讨黄芪注射液降低气道反应性的作用.
Study on the Surface Figure Changes or primary Mirror Centerally Supported Under Gravity Load
自重作用下中心支撑主反射镜面形变化研究
Studies on the Retro-Reflection of GRIN Polymer Micro-Sphere;
GRIN聚合物微球用作回归反射材料的研究
The Foot Reflex Massage in the Recovery after Movement;
足底反射区按摩法在运动后恢复的作用
Application of state reflection law in teaching of track and field skills;
状态反射规律在田径技术动作教学中的应用
Innovate Performance Examination System with "Operation ConditionRefection Theory";
运用“操作条件反射理论”创新绩效考核体系
Capital Structure Takes Affect For Administering Structural Control and its Mechanism Reflects;
资本结构对治理结构的控制作用与反射机理
