四种基本力（万有引力、电磁力、强核力和弱核力）中的每一种都有一个理论上的旋钮。
Each of the four fundamental forces (gravity, electromagnetism, and the strong and weak nuclear forces) has a kind of theoretical knob.
科学早就通过测量、观察和实验告诉我们宇宙中有四种力：电磁力、强相互作用力、弱相互作用力和万有引力。
Science has shown us through measurement, observation and experimentation that there are four forces in the Universe: electromagnetism, strong interaction, weak interaction and gravitation.
四种基本力(重力，电磁力，强作用力和弱作用力)都有一个理论把手，调节这东西可以改变力的强度。
Each of the four fundamental forces (gravity, electromagnetism, and the strong and weak nuclear forces) has a kind of theoretical knob that can be turned up or down to change its strength.
现代物理学最令人兴奋的观点之一是重力不是像电磁力和核力一样是传统力。
One of the most exciting ideas in modern physics is that gravity is not a traditional force, like electromagnetic or nuclear forces.
之所以称其为“弱作用”，是为了指出粒子受到四大基本力中的另一种——由放射性衰变所产生的弱核力（四大基本力是：引力、电磁力、强力、弱力）。
By calling them “weakly interacting”, physicists mean that the particles experience another of the four fundamental forces, namely, the weak nuclear force that is responsible for radioactive decay.
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。
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.
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。
Scientists believe that gravity, electromagnetic force, strong nuclear force and weak nuclear force are the Four Basic Forces of the universe.
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。
However, the effect of electromagnetic force is stronger than that of the plasma drag force in helium arc.
和宇宙中的其他三种力(电磁力、弱核力、强核力)相比，重力就微弱得多了，所以引力波很难被观测。
Compared with the other three forces in the universe (electromagnetism, the weak nuclear force and the strong nuclear force), gravity is relatively feeble, making gravitational waves hard to detect.
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。
Modern physics thinks that there are 4 kinds of force in the universe: electromagnetic force, gravitation, strong force and weak force.
该法将虚位移原理推广应用于有限单元的节点，从而得到用以描述局部电磁力分布的等效节点力。
The distribution of local magnetic force is described with an equivalent node force, which is derived from an extended application of virtual work principle to FEM node.
我们知道，宇宙中只有万有引力和电磁力这两种长程力。
As you know, only universal gravitation and electromagnetic force are long-distance force in the universe.
引力、强力、弱力已统一为引力，本文电磁力与引力没有统一。
The attraction, the force, the weak strength unified are the attraction, this article electromagnetic force and the attraction have not unified.
在自然界里，人们已发现了四种力：万有引力，电磁力，强力，弱力。
In the natural world, people have discovered four kinds of forces: the electromagnetic force, the gravitation, the weak force, and the strong force.
研究结果表明：除了板坯端部由于端部效应电磁力有些许发散，在板坯大部分区域，磁场力呈均匀分布。
The research results show:in addition to a slightly divergent appear due to the sheet edge effects of the electromagnetic force, the magnetic field intensity is uniform in the most areas of the sheet.
可是一百年过去了，世界科学家只统一了弱力和电磁力这两种力。
But worldwide scientists only unified weak force and electromagnetic force since 100 years passed.
利用电磁体积力改变流体边界层的结构，用作用于流体边界层上的电磁力进行消涡与增涡控制。
The electromagnetic body force was used to change the configuration of the boundary layer of flow.
分析了非线性电磁力和机械不平衡力对水轮发电机转子动态特性的影响。
The influence of the nonlinear electromagnetic forces and mass eccentric forces on the dynamic characteristics of the hydro-generator rotor was analyzed.
分析了非线性电磁力和机械不平衡力对水轮发电机转子动态特性的影响。
The influence of the nonlinear electromagnetic forces and mass eccentric forces on the dynamic characteristics of the hydro-generator rotor was analyzed.
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