文章从四维矢量、物理观测的角度出发，就相互运动惯性系之间的坐标变换关系进行讨论。
From the angel of four dimensions vector and physics observation, this paper discusses the coordinate transform relationship between the relative movement inertia reference frames.
在严格定义四维“形变事件”后，弹簧的形变—弹力方程被表达成完全协变的四维矢量方程。
By defining four dimensional 'deformation event', the spring's equation about deformation and elasticity becomes perfect covariant 4-vector one.
通过单个光子的能量-动量四维矢量变换，导出了辐射热量的相对论关系，所得的结果再一次证实了相对论热力学的P_ E理论。
The relativistic relation of radiant heat was educed by transforming energy-momentum 4-vector of a single photon. The elicited results make sure P-E theory of relativistic thermodynamics once again.
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