hot cathode ionization gauge

例句：

1. 1.The hot cathode ionizationgauge is used to measure the concentration ofpollutants in air.
   热阴极离子计用于测量空气中污染物的浓度。
2. 2. Thehot cathode ionization gaugewas used to detect the presence of harmfulchemicals in the water.
   热阴极离子计被用来检测水中有害化学物质的存在。
3. 3. Thehot cathode ionization gaugewas used to monitor the level of ozone in the atmosphere.
   热阴极离子计被用来监测大气中的臭氧水平。