vacuum

vacuumvacuumD.J.:[ˈvækjuəm]K.K.:[ˈvækjuəm, -jum, -jəm]n.1.■真空Sound waves cannot travel through a vacuum.声波不能在真空中传播。2.■〈口〉真空吸尘器I mean to buy a vacuum next month.下个月我打算买一台真空吸尘器。3.■空间; 空虚; 空白His resignation has left a power vacuum at the head of the party.他的辞职使得该党的领导位置出现了权力真空。His wife's death left a vacuum in his life.他妻子的去世使他的生活变得空虚。vt.1.■用真空吸尘器清扫(某物)I vaccum the carpet twice every week.我每周用吸尘器打扫地毯两次。

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vacuum['vækjuəm]n.1.■真空2.■真空室3.■空白；空虚4.■封闭状态5.■真空吸尘器；真空装置adj.1.■真空的；产生真空的2.■无空气的3.■利用真空吸力的vt.1.■用真空吸尘器清扫：She vacuumed the room this morning.她今天上午用吸尘器清扫了房间。2.■使用真空装置于vi.1.■使用吸尘器吸尘；使用真空装置：He has been vacuuming all morning.他用吸尘器打扫了一上午。feel a vacuum in the lower regions[戏谑语]觉得肚子空空的in a vacuum似在真空中变形n.vacuumsvacua

vacuumvacuum[ˈvækjuəm]n.(pl. vacuums, -cua [ˈvækjuə])1.■真空(度); 真空状态2.■空虚; 空白; 空处3.■(=vacuum cleaner)真空装置; 真空吸尘器vacuum tank真空罐

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词性变化vacuumvt., vi.1.■[美口]用真空吸尘器打扫2.■用真空干燥机干燥vacuum the rugs用吸尘器打扫地毯vacuumadj.1.■真空的2.■能产生真空的3.■利用真空的

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继承用法vacuum-annealingn.1.■真空退火vacuum-bakingn.1.■真空烘焙法vacuum-bottlen.1.■保温瓶, 热水瓶vacuum-castingn.1.■真空铸锭vacuum-desiccatorn.1.■真空干燥器vacuum-filtern.1.■真空过滤机vacuum-ga(u)gen.1.■真空计, 气体压力计, 流体压强计vacuum-impregnationn.1.■真空浸渍vacuum-insulatedadj.1.■真空绝缘的vacuumjunctionn.1.■真空热电偶vacuum-lockn.1.■真空锁vacuum-meltingn.1.■真空熔化vacuum-metern.1.■真空计vacuum-packed[ˈvækjʊəm pækt]adj.1.■真空包装的vacuum-pressingn.1.■真空压制vacuum-pumpn.1.■真空泵, 排气唧筒vacuum-sinteringn.1.■真空烧结