Secondly , general relativity relies mainly on the force of gravity while quantum mechanics relies mainly on the other three fundamental forces , those being the strong , the weak , and the electromagnetic 其次，广义相对论主要依靠引力而量子力学主要依靠其它三种基本力，那些力是强力、弱力、电磁力。
( 2 ) analysis magnet field is realized by maxwell 2d on finite - element of electromagnetic field analysis . inductance of coil as well as electromagnetic force was calculated by means of it ( 2 )利用ansoft软件中的maxwell2d磁场有限元分析软件进行电机磁场分析、静态电磁力的仿真计算以及电机线圈自感的计算。
This feature is very welcome because it precisely matches the properties of the carriers of all known fundamental forces , such as the photon ( for electromagnetism ) and the graviton ( for gravity ) 这项特色是很受人欢迎的，因为它精确地吻合所有已知基本作用力载体（如传播电磁力的光子以及重力的重力子）的性质。
These energy levels are determined by how tightly the atomic nucleus holds the electrons , which depends on the strength of the electromagnetic force between them ? and therefore on the fine - structure constant 能阶是由原子核拉住电子的松紧程度所决定，而这又取决于能阶之间的电磁力强度，因此便和精细结构常数关系密切。
These findings complement recent contentious observations that the fine - structure constant , which describes the overall strength of the electromagnetic force , has increased slightly 这项发现为近来一项引人争议的观察做了补充：用来描述电磁力总体强度的精细结构常数，已经些微增加了。详情请见4月21日的《物理评论通讯》 。
In order to research the eddy current electromagnetic force that varies with the relative speed , including brake force and attraction , the high speed simulation test stand for track eddy current brake was developed 为了研究涡流电磁力包括涡流制动力的电磁吸力，在不同的相对运动速度下的变化规律，研制了轨道涡流制动试验台。
The " pouring of water or an offering " and the outlandish angles at which it is being done tends to make it one of countless scenes reinforcing the idea that such scenes are instead showing the migration or transmission of electromagnetic forces “水或祭品的浇铸”和以奇异的角度进行使它往往成为数不尽的场景之一，强化了这样的场景被用来替代表现电磁力的转移或传输的想法。
Examining the simulation results , the deformation of sheet metal would affect the magnitude of electromagnetic force , and the corners of sheet metal had worse formability because of the insufficient electromagnetic force and flash 由模拟结果可知，成形过程工件的变形会明显的影响电磁力的大小；同时，无预成形板材角落之成形性受到电磁力不足与馀料太多的影响，成形较其他部位差。
The important aspect in the analysis of coupled electromagnetic - mechanical problems is the consideration of the coupled interaction between the electromagnetic field and the deformation / force on the contact boundaries , which leads strongly non - linear behaviors 摘要电磁接触耦合作用的力学分析的难点是必须考虑电磁场以及由此引起的电磁力与可移动接触边界间的耦合作用，属于强非线性问题。
After analysizing the direction and rane which electromagnetic force probably possess , we designed the two - stage mechanism measuring forces , fixed separately with two sets of sensors from the inside to the outside of the fan - shaped mechanism 通过分析涡流电磁力形成方向和范围，设计了两级测力机构，即安装在扇形支架内的测试电磁吸力的测试机构和安装在扇形支架外侧的测试涡流制动力的测试座。
