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- Some pumps and all vacuum cleaners work by suction. 有些泵和所有真空吸塵器都是借吸力工作的。
- His wife's death left him a vacuum in his life. 他妻子的去世使他的生活變得空虛。
- Her husband's death left a vacuum in her life. 她丈夫的死使她的生活變得空虛。
- Some people are living in a vacuum. 有些人過(guò)著(zhù)與世隔絕的生活。
- A vacuum cleaner is a handy household tool. 吸塵器是一種使用方便的家庭用具。
- The shop repairs vacuum cleaners. 這家店修理吸塵器。
- The porter turned off the vacuum. 清潔工關(guān)掉真空吸塵器。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符號
- Sealed under low pressure or a partial vacuum. 抽空密封的在低壓或部分真空狀態(tài)下密封起來(lái)的
- Dirt and dust are drawn into a vacuum cleaner by suction. 污物和灰塵被吸入吸塵器。
- We could not pull apart two plates which enclosed a vacuum. 如果兩個(gè)盤(pán)子間是真空，我們就無(wú)法將它們分開(kāi)。
- Operating by means of suction or by maintaining a partial vacuum. 抽真空的用吸取的方式或用維持部分真空的方式來(lái)運作的
- Low temperature environment is simulated by using a cascade refrigeration system in the thermal vacuum test facility of spacecraft subassembly. 衛星部組件熱真空試驗設備制冷系統提供試驗設備的冷黑環(huán)境。
- On Saturdays we dust and vacuum. 每星期六我們掃除灰塵并用真空吸塵器打掃。
- His departure created a vacuum in our lives. 他的離去在我們的生活中造成了空虛。
- Do you want me to vacuum the floor? 你要我給地板吸吸塵嗎？
- His orders were issued into a vacuum, so to speak. 他的命令在某種程度上等于一紙空文。
- The vacuum valve opens to admit air. 真空閥開(kāi)啟以補充空氣。
- The whole apparatus operates under high vacuum. 整個(gè)裝置在高真空下運轉。
- I mean to buy a vacuum next month. 下個(gè)月我打算買(mǎi)一臺真空吸塵器。
