laser frequency

例句：

1. 1. The laser frequency is crucial for the operation of the laser printer.
   激光频率对于激光打印机的运行至关重要。
2. 2. The laser frequency is measured in hertz, which corresponds to the number of times light can be reflected back and forth.
   激光频率以赫兹为单位，相当于光来回反射的次数。
3. 3. The laser frequency was adjusted to ensure optimal performance.
   激光频率被调整以确保最佳性能。