reference datum
21datum — noun /ˈdeɪtʌm,ˈdɑːtʌm/ a) plural: data A measurement of something on a scale understood by both the recorder (a person or device) and the reader (another person or device). The scale is arbitrarily defined, such as from 1 to 10 by ones, 1 to 100… …
22datum line — n. datum level, reference line from which heights and depths are measured …
23datum line — A baseline, or reference line, from which calculations or measurements are taken. See datum …
24datum level — atskaitos lygmuo statusas T sritis fizika atitikmenys: angl. datum level vok. Bezugsniveau, n rus. исходный уровень, m; начальный уровень, m pranc. niveau de référence, m …
25datum level — nulinis lygis statusas T sritis Gynyba apibrėžtis Paviršius, su kuriuo žemėlapiuose ar planuose siejamos iškilumos, aukščiai ir gyliai. atitikmenys: angl. datum level pranc. niveau de référence ryšiai: dar žiūrėk – absoliutusis lygis …
26référence d’altitude — aukščio atskaita statusas T sritis Gynyba apibrėžtis Pasirinktas lygis, nuo kurio matuojamas vertikalus nuotolis. Aukščio matavimo atskaita yra žemės paviršius tiesiog po orlaiviu ar kitas sutartas lygis (barometriniam aukščiui – 29,92 colio… …
27datum — Any numerical or geometrical quantity or set of such quantities which may serve as reference or base for other quantities. Where the concept is geometric, the plural form is “datums” in contrast to the normal plural “data” …
28datum point — Any reference point of known or assumed coordinates from which calculation or measurements may be taken. See also pinpoint …
29datum line — noun A fixed, measurable line, used as a reference from which angular or linear measurements are taken …
30datum point — noun A point which serves as a reference or base for the measurement of other quantities …
