vacuum
真空,真空度,真空状态,真空环境
Related Words
Definitions
- 1
plural vac·u·ums for 1, 2, 4-6, vac·u·a [vak-yoo-uh] /ˈvæk yu ə/ for 1, 2, 4, 6.
- : a space entirely devoid of matter.
- : an enclosed space from which matter, especially air, has been partially removed so that the matter or gas remaining in the space exerts less pressure than the atmosphere.
- : the state or degree of exhaustion in such an enclosed space.
- : a space not filled or occupied; emptiness; void: The loss left a vacuum in his heart.
- : a vacuum cleaner or sweeper.
- : Physics. a state of lowest energy in a quantum field theory.
- 1
- : of, pertaining to, employing, or producing a vacuum.
- : partly exhausted of gas or air.
- : pertaining to a device or process that makes use of a vacuum to accomplish a desired task.
Synonyms & Antonyms
Examples
To do so, astrobiologists took their experiments to space to see how terrestrial life holds up in this harsh environment, where the vacuum, lack of oxygen, ultraviolet radiation and extreme temperatures would seem to preclude it.
In fact, inflation comes together with a recipe for the quantum state of fields in the inflationary epoch, a so-called Bunch-Davies vacuum.
That demise would not be a result of expansion or contraction, but due to a phenomenon called vacuum decay.
As the pandemic worsened over the summer, the lack of clear state guidance about how and if to reopen schools was creating another vacuum.
The vacuum re-creates the downward pull of gravity, planting the person’s feet firmly on the floor of the chamber and drawing bodily fluids toward the legs.
But politicians abhor a rhetorical vacuum, and they have clamored to fill it.
Every conspiracy theory starts with an information vacuum, which then tumbles into fantasy.
In a vacuum (translation: but for Obama), this could be a killer year for Democrats.
There are also drones which vacuum the wireless spectrum, picking up tweets, emails, and Skype chats.
So Iran would have to eventually withdraw, leaving a power vacuum, again, in those areas.
Its first cost and expense in working to be much less than that of the Watt low-pressure steam engine.