Valsts valodas centra izstrādātie fizikas un astronomijas termini

Konteksts: [..] illumination angle means the angle between the axis of reference and the straight line connecting the centre of reference to the centre of the source of illumination [..]
Avots: Council Directive 27 July 1976 on the approximation of the laws of the Member States relating to reflex reflectors for motor vehicles and their trailers (76/757/EEC)