photoelectric pick-up

例句：

1. 1.The photoelectric pick-up is used to detect the presence of light in a dark environment.
   光电拾取器用于在黑暗环境中检测光的存在。
2. 2. The photoelectric pick-up is an essential tool for scientists to study the behavior of particles.
   光电拾取器是科学家研究粒子行为的重要工具。
3. 3.The photoelectric pick-up can be used to measure the intensity of light and its wavelength.
   光电拾取器可以用来测量光的强度和波长。