automatic wave length selector

例句：

1. 1. The automaticwavelength selector is used to select theoptimal wavelength for the experiment.
   自动波长选择器用于为实验选择最佳波长。
2. 2. The automaticwavelength selector can quickly adjust the wavelengthof light for precise measurements.
   自动波长选择器可以快速调整光的波长，进行精确测量。
3. 3. The automatic wavelength selector isan essential tool in the field of spectroscopy.
   自动波长选择器是光谱学领域的一项必备工具。