germanium photocell

例句：

1. 1. The germanium photocell is a crucial component in the detection of radiation.
   锗光电管是检测辐射的关键部件。
2. 2. The germanium photocell was used to measure the intensity of light.
   锗光电管被用来测量光的强度。
3. 3. The germanium photocell was used in the early days of television as a way to detect changes in the picture.
   锗光电管在电视早期用作检测画面变化的一种方式。