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recording instrument in which the record is made by a spot of light, visible or invisible, on a light-sensitive chart, meerseade, milles meeringu teeb valgustundlikul diagrammil nähtav või nähtamatu valgustäpp
valguskiir-kirjuti . Metroloogia terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mea/valguskiir-kirjuti/1/est (02.07.2026)