‘Design torso angle’ means the angle measures between a vertical line through the ‘R’ point and the torso line in a position which corresponds to the design position of the seat-back established by the vehicle manufacturer;
Torso arvutuslik kaldenurk on nurk, mis on mõõdetud läbi R-punkti kulgeva vertikaaljoone ja torsojoone vahel asendis, mis vastab tootja määratud projektijärgsele seljatoeasendile.