dustoorn.习惯(惯例)
dustn.灰尘;尘土;粉尘vt.去掉 ... 的灰尘;撒粉末于vi.除尘
dust-precipitatorn.收尘器
dust-removal room除尘室
dustproof enclosure防尘围栏
dust stratification积灰
dust content of air空气含尘量
dust-devil effect尘卷效应
dust sb.'s jacket
dust collecting fan吸尘器
dust cooled reactor粉法冷却堆
dust wet deposition沙尘湿沉降