There are different formulae for Doppler effect using different frames of reference in literatures.
由于所用参考系不同，因而各种文献给出了不同形式的多普勒效应表达式。
He is adamant that this is not a perpetual motion machine, and does not violate the law of conservation of momentum because different reference frames apply to the drive and the waves within it.
他坚持认为这并非永动机，也没有违反能量守恒定律，因为驱动器和里面的微波使用不同的坐标系。
Levinson's research indicates that the different choices of frames of reference in different languages can facilitate their corresponding non-linguistic cognitive patterns.
莱文森的研究表明，不同语言中对于空间参照系的选择会影响到非语言的认知模式。
This article examines the same electromagnetic process in different reference frames and gives out the relative physical explanation to illustrate the relativity of electric force and magnetic force.
考察了在不同参照系中的同一电磁过程，并给出相应的物理解释，说明了电力和磁力的相对性。
The so-called "dynamic" is defined with the help of two objects moving at different speed, which are used as frames of reference to each other. In this way, they are dynamic relative to each other.
所谓运动，就是选取不同速的两对象，互相作参考系，那么对他们来说是互相运动的。
The so-called "dynamic" is defined with the help of two objects moving at different speed, which are used as frames of reference to each other. In this way, they are dynamic relative to each other.
所谓运动，就是选取不同速的两对象，互相作参考系，那么对他们来说是互相运动的。
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