pyrometer cone

例句：

1. 1.The pyrometer cone was used to measure the temperature of the furnace.
   使用热电偶锥测量炉温。
2. 2.The pyrometer cone was used to detect the presence of a fire.
   使用热电偶锥探测火灾。
3. 3.The pyrometer cone was used to measure the temperature of the liquid.
   使用热电偶锥测量液体温度。