Fundamental constants such as the strength of the electromagnetic force - the so-called fine-structure constant, or alpha - get their name from the fact that they are supposedly the same everywhere.
宇宙基本常数，比如电磁力强度之类的精细结构常数，符号位“alpha ”，它们因为被假定为不变量而得名。
Scientists believe that gravity, electromagnetic force, strong nuclear force and weak nuclear force are the Four Basic Forces of the universe.
科学家们认为，万有引力、电磁力、弱力和强力是宇宙中的四种基本作用力。
Then we derived the expression of electromagnetic force in the electromagnetic crystallizer in the cylindrical coordinates.
进而推导出在柱坐标系中，电磁结晶器内电磁力的表达式。
This force is not the universal gravity but electromagnetic force.
此引力并非万有引力，而是电磁力。
Find a way of force and motion coexist. Accordingly, the unification of the electromagnetic force, powerful force, gravity, and explains the turbulence and Earth's rotation principle.
发现了力和运动的共存方式。据此，统一了电磁力、强力、引力，并解释了湍流和地球自转的动力原理。
The measure result of the electromagnetic force between two charges is different in distinct reference system.
两个电荷之间的电磁作用力在不同参考系中测量结果是不一样的。
With help of ANSYS software, the short circuit electromagnetic force is calculated and analyzed for an enclosed busbar.
借助ANSYS软件对封闭母线进行短路电动力计算和分析，并与理论计算值进行比较。
However, the effect of electromagnetic force is stronger than that of the plasma drag force in helium arc.
在氩弧下，影响熔池形貌的另一个重要的驱动力是气体剪切力，而氦弧下则是电磁力。
The control effect of electromagnetic force on cylinder wake, lift force and drag force , which was caused by alternating current, is related to its frequency.
而交流电所产生的电磁力对于绕流涡街、升力、阻力的控制作用，则与所使用的频率有关。
Traveling-wave interaction and secondary magnetic field is generated electromagnetic force, which is a straight line to run the basic principles of electric motors.
行波磁场与次级相互作用便产生电磁推力，这就是直线电动机运行的基本原理。
The electromagnetic force decays rapidly in the molten steel, and its decaying speed is related to the current frequency and polar pitch of the stirrer.
在电磁搅拌作用下，电磁力的大小随钢液液池宽度的增加呈指数衰减趋势，其衰减速率与电流频率和搅拌器极距有关。
The dynamic characteristics of the magnetic operating mechanisms is decided by the match of the electromagnetic force and the counterforce.
电磁操动机构动态特性是由电磁吸力和负载反力配合过程决定的。
Modern physics thinks that there are 4 kinds of force in the universe: electromagnetic force, gravitation, strong force and weak force.
现代物理学认为宇宙中存在4种力：电磁力、万有引力、强力和弱力。
Electronic balance is the use of electromagnetic force balance principle, the application of modern electronic technology design made of.
电子天平是采用电磁力平衡的原理，应用现代电子技术设计而成的。
The surface tension, arc blow force and electromagnetic force work positive to improve the penetration, and the buoyancy can increase the width in the middle of weld pool.
表面张力、电弧吹力和电磁搅拌力均有利于获得较大的熔深，浮力有利于增加焊缝中间部位的宽度。
Have carried on research to electromagnetic force according to the law of conservation of energy.
依据能量守恒定律对电磁推力进行了研究。
The nonlinear electromagnetic force may cause the large oscillations of the rotor in some parameter regions.
非线性电磁力可以引起转子在一些区域有较大振动。
The electromagnetic force acting on the crack in a metal is studied by numerical simulation method. The distributions of electric current, magnetic field and the electromagnetic stress are given.
用数值模拟方法研究了金属裂纹尖端电磁应力的分布情况，给出了电流分布、磁场分布和电磁应力的分布。
The electromagnetic force acted on the molten metal is the core of electromagnetic theory applied in materials machining.
电磁场理论应用于材料加工过程的核心，是电磁力对液态金属的作用。
The electrons of an atom are bound to the nucleus by the electromagnetic force. Likewise, a group of atoms can remain bound to each other, forming a molecule.
电子原子必将核的电磁力。同样，一组原子可以保持彼此的约束，形成了分子。
According to the principle of virtual-work, the formula of electromagnetic force based on magnetic vector potential is deduced.
根据虚位移原理，推导出基于矢量磁势的电磁力计算公式。
Behavior of the particles in front of metallic solidifying interface under electromagnetic force was discussed.
对电磁场作用下金属凝固界面前沿颗粒行为进行了考察。
A micro sampling actuator driven by electromagnetic force is designed and fabricated by MEMS technology.
设计和采用MEMS工艺技术制作了一种由电磁驱动的微量取样执行器。
The new actuator structure is mainly made of SU-8 and it can be bi-directionally driven by electromagnetic force from permanent magnet array.
作者不仅提出了以SU—8胶为主要材料制作执行器的结构，并且提出了通过永磁阵列实现电磁双向驱动。
The Maxwell′s electromagnetic force equation is one of the two equations to calculate electromagnetic force of ferromagnetic objects.
麦克斯韦电磁力公式是求解铁磁物体（磁性物体）所受电磁力的两公式之一。
It is driven not by the adhesion force from the contact between wheel and rail, but by the electromagnetic force from reaction plate which is mounted in track.
它不是由轮轨间的粘着力驱动，而是由安装在轨道的反应板产生的电磁推力驱动的。
The electromagnetic field distribution was studied to explain the increased electromagnetic force after installing permanent magnets in a movable magnetic coils control rod drive mechanism.
为了解释控制棒可动线圈电磁驱动机构加入永磁后电磁力增强的机理，对机构的电磁机理及分布进行了研究。
Electromagnetic launch is a fire method, through which the projectile body is shot by electromagnetic force generated by launcher.
电磁弹射是指以发射器施加的电磁力作为媒介，将物体弹射出去的一种方法。
Electromagnetic launch is a fire method, through which the projectile body is shot by electromagnetic force generated by launcher.
电磁弹射是指以发射器施加的电磁力作为媒介，将物体弹射出去的一种方法。
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