wavelength scan midpoint

例句：

1. 1. The scientist measured the wavelength of the light to determine its frequency.
   科学家测量了光的频率来确定其波长。
2. 2.The engineer calculated the wavelength of the laser beam to ensure it was within acceptable limits.
   工程师计算激光束的波长，以确保它处于可接受的范围内。
3. 3. The physicist discovered a new wavelength that could be used for communication purposes.
   物理学家发现了一种新的波长，可以用来进行通信。