The returning light beams merge together at the beam splitter and create an interference pattern of light and dark regions where the light waves either cancel out or reinforce each other.
返回的两束光在分束器处汇合，产生由亮区和暗区组成的干涉图案，图案中，光波要么相互抵消要么相互增强。
2
That's the interferenceof sound waves from the forks.
那是音叉发出的声波的干涉的结果。
3
Existing UWB radars typically use a random noise signal to avoid interference between wavesof the same wavelength.