dust up争吵, 争论, (非正式)骚乱, 喧闹dustn.灰尘；尘土；粉尘vt.去掉 ... 的灰尘；撒粉末于vi.除尘dust collecting equipment集尘设备dust production mechanism扬尘机理Dust content in cigarette卷烟含末率dust-proof rubber strip防尘橡皮条dust measuring instrument测尘仪器dust-removing equipment除尘设备dust-borne transmission尘埃传播Dust floast in the air.灰尘飘在空中。dust collecting electrode集尘电极dust settling compartment降尘室