dustupn.<俚>吵闹； 骚动dustn.灰尘；尘土；粉尘vt.去掉 ... 的灰尘；撒粉末于vi.除尘dust diluent粉剂稀料dust settler除尘器dust loading粉尘含量dust aerosol沙尘气溶胶dust sources沙尘源dust-fired粉末燃烧的dust-deviln.小尘暴；尘旋风dust cyclone集尘旋流器dust remover除尘器dust barrier岩粉棚