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Toys and games
1) Devices that are used exclusively for recreation and play. Toys are most often used with children and pets and as a medium of education and development. Toys are not always obvious in their nature. A simple bottle can be considered a toy if an individual uses it for recreational use. 2) Games are structural activities used for physical or psychological education. In most cases, games are recreation. However, games can also be considered work. For example, a professional soccer game is a career to the participants.
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dipol antenne
Earth science; Mapping science
En antenne, bestående af to særskilte, åbne endte dirigenter i linje og en kort afstand. Tilstødende ender er tilsluttet en radio receiver eller radiosender terminaler. Kaldes ...
forvrængning kurve
Earth science; Mapping science
En kurve, der repræsenterer den lineære forvrængning forårsaget af en linse system. Det er afbildet med radial afstande af billede point fra den optiske akse som abscissas og ...
omledning grøft
Earth science; Mapping science
(1) En grøft konstrueret til omledning af vand fra dets naturlige kanal. (2) Et omtrent parallelt til toppen af en opskåret backslope for at forhindre surficial vand fra flyder ...
descaling
Materials science; Corrosion engineering
Fjerne den tykke lag af kvælstofoxider dannet på nogle metaller ved høje temperaturer.
polyester
Materials science; Corrosion engineering
Harpiks dannet ved kondensation af flerbasiske og monobasisk kaliumphosphat syrer med polyvalente alkoholer.
epoxy
Materials science; Corrosion engineering
Harpiks dannet ved reaktion mellem bisphenol og epichlorohydrin.
