Some concepts such as relative rest reference frame, relative uniform motion reference frame, and relative accelerated motion reference frame was confirmed.

确定了相对静止系、相对匀速运动系、相对加速运动系的概念。

youdao

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。

youdao

Residual coding is even more difficult to understand than motion vector coding, as the only full reference is a bunch of highly optimized, highly obfuscated C code.

剩下的编码甚至比运动矢量编码更难理解，因为唯一的完整参考是一堆高度优化的，高度混淆的C代码。

youdao

"The Alliance Party decided to remove completely any reference to the corporals from our motion and proposed a form of words that placed innocent soldiers on the same level as terrorists, " Mr Stalford said.

BBC: Northern Ireland