powder-dust sampling meter

例句：

1. 1. This powder sampler is perfect for testing the quality of your flour.
   这款粉末采样仪非常适合测试面粉的质量。
2. 2.The manufacturer claims that this dust sampler can detect even the smallest amounts of pollutants in the air.
   制造商声称这款粉尘采样仪可以检测空气中最小的污染物量。
3. 3. The engineer used the powder sampler to analyze the chemical composition of the soil samples.
   工程师使用粉末采样仪分析了土壤样本的化学成分。