Then you send laser light through a beam splitter to divide the beam between the two arms, and let the light bounce back and forth a few times before returning to the beam splitter.
然后你通过分光器发射一束激光，让光线在两条边不断反射再回到分光器。
2
The laser altimeter will bounce beams of light off of the surface to measure the heights of mountains and depths of valleys.
激光测高仪通过物体表面反射的光束测量山脉的高度和峡谷的深度。
3
An experimental investigation of influencing factors on contact bounce of DC relay by using a high-precision laser displacement sensor was presented.