photoelectric pickoff

例句：

1. 1. The photoelectric pickoff 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 pickoff is an essential component of many modern electronic devices.
   光电拾取器是许多现代电子设备的必备组件。
3. 3. The photoelectric pickoff is used in various applications, including security systems and medical imaging.
   光电拾取器在各种应用中都有使用，包括安全系统和医学成像。