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# two intersecting cylinderes
solid cyl1 = ellipticcylinder ( 0, 0, 0; 0, 0, 2; 0, 2.5, 0)
and plane (-10, 0, 0; -10, 0, 0)
and plane (10, 0, 0; 10, 0, 0);
solid cyl2 = cylinder ( 1, 0, 0; -1, 0, 0; 1.0 )
and plane (-10, 0, 0; -10, 0, 0)
and plane (10, 0, 0; 10, 0, 0);
solid main = cyl1 and not cyl2;
tlo main;
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