n. (pl. vacuums, vac-ua ) 1.真空；空处，空虚，空白。 2.〔美口〕吸尘器(＝ vacuum cleaner)。 短语和例子 a low [partial] vacuum低度[未尽]真空。 feel a vacuum in the lower regions 〔戏谑语〕觉得饿。 vi.,vt. 〔美口〕 1.用吸尘器扫除。 2.用真空干燥机干燥。 adj. 1.真空的。 2.用以产生真空的。 3.利用真空的。 vt. -ize 1.在…内造成真空。 2.用真空装置打扫[干燥]。 3.真空包装。
an electrical home appliance that cleans by suction 同义词：vacuum cleaner,
a region that is devoid of matter 同义词：vacuity,
an empty area or space; "the huge desert voids"; "the emptiness of outer space"; "without their support he''ll be ruling in a vacuum" 同义词：void, vacancy, emptiness,
the absence of matter 同义词：vacuity,
clean with a vacuum cleaner; "vacuum the carpets" 同义词：vacuum-clean, hoover,
Vacuum is space that is empty of matter. The word stems from the Latin adjective vacuus for "empty" or "void".
例句与用法
1.
The mixture is then distilled in vacua . 然后混合物进行真空蒸馏。
2.
No vacuum or picture tubes were broken . 真空管或显影管都未破碎。
3.
The whole apparatus operates under high vacuum . 整个装置在高真空下运转。
4.
The vacuum valve opens to admit air . 真空阀开启以补充空气。
5.
Into the vacuum came the new york conservative party . 取而代之的是纽约的保守党。
6.
Clearly, management doesn't operate in a vacuum . 很清楚，管理并不是在真空里进行的。
7.
They were conscious of a vacuum after his departure . 他离开以后，他们感到茫然若失。
8.
She vacuumed the carpet . 她用真空吸尘器打扫地毯。
9.
But what these should be cannot be decided in a vacuum . 但它们应该是什么不能凭空而定。
10.
The canister vapor-vent value is operated by vacuum . 活性炭罐蒸气排泄阀是由真空控制的。
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