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What (who) is vacuum-tight - definition
WIKIMEDIA DISAMBIGUATION PAGE
Tight (Album); Tight (disambiguation); Tight (album)
Tight binding
MODEL OF ELECTRONIC BAND STRUCTURES OF SOLIDS
Tight Binding; Tight-binding model; Tight binding model; Tight binding (physics); Tight-binding; Tight binding approximation; Tight-binding approximation; Slater Koster Tight-Binding method
In solid-state physics, the tight-binding model (or TB model) is an approach to the calculation of electronic band structure using an approximate set of wave functions based upon superposition of wave functions for isolated atoms located at each atomic site. The method is closely related to the LCAO method (linear combination of atomic orbitals method) used in chemistry.
vacuum cleaner
![The power unit of a typical [[central vacuum cleaner]] for residential use](https://commons.wikimedia.org/wiki/Special:FilePath/Drainvac central vacuum with air inlet.jpg?width=200 "The power unit of a typical [[central vacuum cleaner]] for residential use")
![Astronaut [[Tracy Caldwell Dyson]] vacuums equipment on the [[International Space Station]]](https://commons.wikimedia.org/wiki/Special:FilePath/ISS-24 Tracy Caldwell Dyson during housekeeping.jpg?width=200 "Astronaut [[Tracy Caldwell Dyson]] vacuums equipment on the [[International Space Station]]")
![Kirby]] G5 vacuum cleaner](https://commons.wikimedia.org/wiki/Special:FilePath/Kirby G5 upright vacuum cleaner - 20140913.jpg?width=200 "Kirby]] G5 vacuum cleaner")
![A [[Mid-century modern]] styled canister vacuum](https://commons.wikimedia.org/wiki/Special:FilePath/Ruton vacuum cleaner pic2.JPG?width=200 "A [[Mid-century modern]] styled canister vacuum")
![Housemaid]] using "dedusting pump", {{Circa}} 1906.](https://commons.wikimedia.org/wiki/Special:FilePath/Vacuum Cleaner 1906.jpg?width=200 "Housemaid]] using \"dedusting pump\", {{Circa}} 1906.")
DEVICE THAT SUCKS UP DUST AND DIRT FROM FLOORS
Vacuum Cleaner; Vacuum cleaners; Vacuum Cleaners; Wet/dry vacuum; Hoovering; Vaccum cleaner; Dust sucker; Vacuumming; Vacuum cleaning; Vacuum sweeper; Vacuum belt; Vacuum filter; Vacuum Filter; Vacuum machine; Daniel Hess; Hoover Constellation; Shop vac; Shop-vac; Shop Vac; Shop-Vac; Shop vacuum; Shop vacuum cleaner; Vaccuum cleaner; Hoover (vacuum cleaner); Cyclonic vacuum cleaner; Vacuuming; Kruimeldief; Kruimeltjesdief
also vacuum-cleaner
(vacuum cleaners)
A vacuum cleaner or a vacuum is an electric machine which sucks up dust and dirt from carpets.
N-COUNT
Vacuum engineering
TECHNOLOGY TO LOWER GAS PRESSURES FOR VARIOUS TECHNICAL AND SCIENTIFIC PURPOSES
Vacuum equipment; Vacuum system
Vacuum engineering deals with technological processes and equipment that use vacuum to achieve better results than those run under atmospheric pressure. The most widespread applications of vacuum technology are:
