| 单词 | 真空 |
| 释义 | 〔vacuum〕To clean with or use a vacuum cleaner.使用真空吸尘器（打扫）〔demonstrate〕The salesperson plugged in and demonstrated the vacuum cleaner.售货员插上电源，示范真空吸尘器的操作〔C〕c The symbol for the speed of light in a vacuum. c 表示真空中光速的物理符号〔vacuum〕Absence of matter.真空：没有东西〔aspirator〕A suction pump used to create a partial vacuum.用于使局部真空的抽吸泵〔empty〕Vacuous describes what is as devoid of substance as a vacuum is: Vacuous 描述象真空一样缺少物质： 〔wand〕a vacuum cleaner that has two extension wands.带有两截延长把手的真空吸尘器〔implosion〕A violent collapse inward, as of a highly evacuated glass vessel.向内破裂：强烈内爆，如真空玻璃的内爆〔vacuum〕Of, relating to, or used to create a vacuum.真空的，与真空有关的，用来制造真空的〔vacuity〕An empty space; a vacuum.真空：空间；真空〔vacuum〕A space in which the pressure is significantly lower than atmospheric pressure.真空般状态：压强明显比大气压强低得多的空间〔extension〕an extension for the vacuum cleaner; built a new extension onto the hospital wing.真空吸尘器容量加大；向医院的一侧扩建〔vacuum〕pl. vac.uums A vacuum cleaner.【复数】 vac.uums 真空吸尘器〔vacuum〕Operating by means of suction or by maintaining a partial vacuum.抽真空的：用吸取的方式或用维持部分真空的方式来运作的〔important〕Some critics have objected to the use of the phrasemore importantly in place of more important as a means of introducing an assertion, as inMore importantly, there is no party ready to step into the vacuum left by the Communists. But both forms are widely used by reputable writers,and there is no obvious reason for preferring one or the other.In an earlier surveythe introductory use ofmore importantly was acceptable to half of the members of the Usage Panel. 一些批评家已经对短语more importantly 作为表述一个断言的方法来代替短语 more important 提出反对意见， 如在句子更重要的是，没有政党准备进入共产党留下来的真空中去。 但是这两种形式都被有声望的作家广泛使用，并且没有明显的理由说哪个比哪个更好。在早期的调查中，more importantly 的引入使用对用法专题小组的半数成员来说是可以接受的 〔exhaust〕An apparatus for drawing out noxious air or waste material by means of a partial vacuum.排气装置：通过部分真空的方式排出有害气体或废物的装置 |
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