&quot; Curvature &apos; r &apos; &quot; means the approximate value of the smallest radius of arc of the windscreen as measured in the most curved area.
2.21 &lt; &lt; Courbure &lt; &lt; r &gt; &gt; &gt; &gt; , la valeur approximative du plus petit rayon de l &apos; arc du pare-brise mesuré dans la zone la plus incurvée.