The reason is that their motion is relative, and relativity, as we have seen, means that we have a choice.
理由就是他们的运动是相对的。正如我们所理解的那样，相对论就意味着我们可以选用一种解释了。
The reason is that their motion is relative, and relativity.
其原因是在于它们运动是相对的；
The reason of rend and unstable running of cone lining was found through analysis of cone crusher by using the principle of dynamic and motion. The methods for solving the problems were raised.
运用动力学和运动学原理，对圆锥破碎机进行了运动和受力分析，找出了锥形衬套产生裂纹及运动不稳定的原因，并提出了解决问题的方法。
The symmetry vortex of water induced by particle clouds does not synchronize with the motion of particle clouds, and the symmetry vortex is the key reason for clouds to disperse.
泥沙云团在加速下沉阶段所引起水的对称涡与泥沙云团的运动是不同步的，对称涡是引起泥沙云团扩散的重要因素。
And we are led to infer that, if all the impeding forces of gravitation and resistance could be removed, there is no reason why the ball, once in motion, should ever stop.
由此可以推论，如能去除一切起阻碍作用的引力和阻力，就没有理由认为，球一旦处于运动中还会再停下来。
This paper analyses the reason of filling stop motion of air-jet loom and introduces some methods in adjustment and operation.
分析了喷气织机纬向停台的原因，介绍了与之相关的调整方法及操作方法。
Meanwhile, analyses the basic segregation reason under external force with motion and kinematical analysis methods.
采用颗粒运动和动力学方法分析了在外力作用下混合料离析的根本原因。
From advertising information motion, analyzed the reason for advertising information vicious circle, and put forward the method to promote it to good circle.
从产品广告信息运动出发，分析了产品广告信息运动恶性循环的成因，提出了促进其良性循环的方法。
The reason lied mainly in the increased stress at the adjacent segment after surgery and the change of segmental motion pattern. Symptoms usually developed within the first 5 years after fusion.
病变原因主要是融合内固定术后相邻节段所受压力增加及节段运动模式改变而致退变。
The damage to the constant speed of Hawkings radiation done by motion layer around black holes is expounded and it is the important reason for the latter to remain undetectable.
本文论述了黑洞周围运动层对霍金辐射恒定速度的破坏，是后者至今仍无法探测到的重要原因。
The reason of formation Xiangshuikan dangerous shoal was studied by methods including remote sensing(RS) image's interpretation analysis, geological change analysis and hydrodynamic motion analysis.
本文采用遥感地质分析方法与水动力演变分析方法分析洞庭湖草尾河响水坎滩险成因。
The reason of formation Xiangshuikan dangerous shoal was studied by methods including remote sensing(RS) image's interpretation analysis, geological change analysis and hydrodynamic motion analysis.
本文采用遥感地质分析方法与水动力演变分析方法分析洞庭湖草尾河响水坎滩险成因。
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