läätse (või läätsede süsteemi) optilise tugevuse mõõtühik
optilise tugevuse SI välise ühiku nimetus/tähis, name/symbol of the non-SI unit for optical strength
a pressure gauge for the accurate measurement of a pressure difference, typically using a metal diaphragm as the sensor and having an electrical output. If one side is connected to a known reference pressure such as vacuum, absolute pressure can be measured.
dpt . Metroloogia terminibaas. Институт эстонского языка, Сынавееб 2026. https://sonaveeb.ee/search/unif//mea/dpt/1/eng (14.09.2026)