quantitative monitoring

例句：

1. 1. The company isconducting quantitative monitoring of the product's quality.
   该公司正在对产品的质量进行定量监测。
2. 2. Quantitative monitoring isessential for ensuring food safety.
   定量监测对于确保食品安全至关重要。
3. 3. The researchers conducted a quantitativemonitoring of the pollutant levels inthe environment.
   研究人员对环境中污染物的水平进行了定量监测。