2.1.1.4. | "r" means the average of the radii of curvature measured over the reflecting surface, in accordance with the method described in Annex 7. | a0c0 |
2.1.1.4. | "r" means the average of the radii of curvature measured over the reflecting surface, in accordance with the method described in Annex 7. | a0c0 |