a phase difference of 90°may therefore be obtained by means of two successive total reflections at either of these angles. 所以,如果在其中某一角度接连全反射两次,则可获得90的相位差。
symmetrical modes were excited by operating the machines in phase and asymmetrical modes, by operating the machines 180°out of phase. 机器以同相运转激起对称振型,机器以180的相位差运转激起非对称振型。
Measuring velocity of light using phase difference method 相位差法测量光的速度
相位差的法语:déphasage相位差的日语:スキューイング相位差的俄语:pinyin:xiāngwèichā эл. разность фаз相位差什么意思:相位差基本解释:简称“相差”。又称“相角差”、“周相差”、“位相差”。谐振动系统不同时刻的相位之差。两个同频率的振动量的相位差,是它们的初相差。