Dustov杜斯托夫dustn.灰尘；尘土；粉尘vt.去掉 ... 的灰尘；撒粉末于vi.除尘dust preventive防尘剂dust collection集尘dust precleaner预收尘器dust spectacles防尘眼镜dust resistance抗尘性dust corpuscles[医] 血尘dust collecting集尘dust separating灰尘分离的dust dermatitis粉尘皮炎dust respirator除尘口罩