single-thread screw single-thread worm single-throw single-throw crankshaft single-throw shaft singlet positronium single track single-track heading single-track tape recorder singlet state singlet term single-type composition single-u butt weld single-u groove single-valued function single-valued transformation single-valved single-v butt weld single-vee groove single vernier |
single-thread screw едноходов винт едноходов шнек Търсената дума е намерена |