gas phototube

例句：

1. 1.The gas phototube was used to detect the presence of radiation in the air.
   气体光电管被用来检测空气中的辐射。
2. 2.The gas phototube was a crucial component in the early detection systems for nuclear power plants.
   气体光电管是早期核电站探测系统的关键部件。
3. 3.The gas phototube was used to measure the intensity of light and heat.
   气体光电管用于测量光和热的强度。