例句與造句

1. Verification regulation of mine dust sampler
   礦用粉塵采樣器檢定規(guī)程
2. Technical requirement of dust sampler
   粉塵采樣器技術(shù)條件
3. Radioactive dust samplers
   放射性塵埃取樣器
4. It's difficult to find dust sampler in a sentence. 用dust sampler造句挺難的