anthracometer

例句：

1. 1. The anthracometer was used to measure the amount of carbon dioxide in the air.
   使用该仪器来测量空气中二氧化碳的含量。
2. 2. The anthracometer was used to analyze the soil samples for organic carbon content.
   使用该仪器对土壤样本进行分析，以测定有机碳含量。
3. 3. The anthracometer was used to determine the level of atmospheric pollution.
   使用该仪器来确定大气污染的水平。