- coordinate trihedral
- мат.триэдр осей
English-Russian scientific dictionary. 2008.
English-Russian scientific dictionary. 2008.
trigonometry — trigonometric /trig euh neuh me trik/, trigonometrical, adj. trigonometrically, adv. /trig euh nom i tree/, n. the branch of mathematics that deals with the relations between the sides and angles of plane or spherical triangles, and the… … Universalium