create vacuum

  • 11vacuum — vac|u|um1 [ˈvækjuəm, kjum] n [Date: 1500 1600; : Latin; Origin: vacuus; VACUOUS] 1.) a space that is completely empty of all gas, especially one from which all the air has been taken away 2.) a vacuum cleaner 3.) [singular] a situation in which… …

    Dictionary of contemporary English

  • 12Vacuum fluorescent display — A vacuum fluorescent display (VFD) is a display device used commonly on consumer electronics equipment such as video cassette recorders, car radios, and microwave ovens. Unlike liquid crystal displays, a VFD emits a very bright light with clear… …

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  • 13vacuum — {{Roman}}I.{{/Roman}} noun ADJECTIVE ▪ perfect ▪ cultural, moral, political, spiritual ▪ The writer criticized the moral vacuum in society. ▪ …

    Collocations dictionary

  • 14create — verb Create is used with these nouns as the subject: ↑architect, ↑artist, ↑developer, ↑economy, ↑program, ↑programmer, ↑sculptor, ↑treaty Create is used with these nouns as the object: ↑ballet, ↑account, ↑ …

    Collocations dictionary

  • 15vacuum frame — noun : a contact printing device using a vacuum to create a uniform pressure during exposure of a photographic film or paper …

    Useful english dictionary

  • 16vacuum bomb — noun a bomb that uses a fuel air explosive a thermobaric bomb can create overpressures equal to an atomic bomb • Syn: ↑thermobaric bomb, ↑fuel air bomb, ↑volume detonation bomb, ↑aerosol bomb • Hypernyms: ↑bomb, ↑ …

    Useful english dictionary

  • 17False vacuum — In quantum field theory, a false vacuum is a metastable sector of space that appears to be a perturbative vacuum, but is unstable due to instanton effects that may tunnel to a lower energy state. This tunneling can be caused by quantum… …

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  • 18Ultra high vacuum — (UHV) is the vacuum regime characterised by pressures lower than about 10−7 pascal or 100 nanopascals ( 10−9 torr). UHV requires the use of special materials in creating the vacuum system, extreme cleanliness to maintain the vacuum system, and… …

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  • 19Materials for use in vacuum — are materials showing very low rate of outgassing in vacuum, and, where applicable, tolerant to the bake out temperatures. The requirements grow increasingly stringent with the desired degree of vacuum achievable in the vacuum chamber. The… …

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  • 20A Perfect Vacuum — (Polish: Doskonała próżnia) is a 1971 book by Polish author Stanisław Lem. It is an anthology of reviews of nonexistent books. It was translated into English by Michael Kandel. A Perfect Vacuum can be seen as a compilation of Lem works: some of… …

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