vacuum

复数：vacua过去式：vacuumed过去分词：vaccumed现在分词：vacuuming第三人称单数：vacuums

1. [C] 真空 space that is completely empty of all matter or gas
2. [C] 〈口〉真空吸尘器 vacuum cleaner
3. [S] 空间; 空虚; 空白 situation or environment characterized by emptiness

• fill a vacuum填补真空
• produce〔create, cause〕 a vacuum产生〔制造〕真空

• low〔rough〕 vacuum低真空
• fine〔high, perfect〕 vacuum高真空

vacuum pump[机]真空泵

in a vacuum似在真空中

high vacuum高度真空，高真空

vacuum distillation真空蒸馏

vacuum cleaner吸尘器；真空吸尘器；真空清洁器

vacuum system真空系统

vacuum degree真空度

vacuum drying真空干燥

vacuum packaging真空包装

vacuum furnace真空炉；退火炉

vacuum filter真空滤器

vacuum tube真空管；电子管

vacuum packing真空包装

vacuum circuit breaker真空断路器

vacuum equipment真空设备

vacuum chamber真空室；压力室

vacuum evaporation真空蒸发；真空蒸镀；真空涂膜

vacuum heat treatment真空热处理；化学热处理

vacuum interrupter真空断续器；真空隔离开关

vacuum forming真空成型

1. The food is kept in the absolute vacuum.
   这食物保存在绝对真空中。
2. I bought a vacuum yesterday.
   昨天我买了个真空吸尘器。
3. His wife's death left him a vacuum in his life.
   他妻子的去世使他的生活变得空虚。

1. These're vacuum controls.
   这是些真空控制装置。

1. Please vacuum the carpets after the breakfast.
   早饭后请用吸尘器清扫下地毯。
2. I moved the chairs back so that I could start vacuuming.
   我将一把把椅子移开，以便开始吸尘打扫。