| 摘要 |
<p>The invention concerns a circuit (2) in which each trajectory portion (6) - is contained in a square (4), - starts at an apex of the square or in the middle of a side of the square at a point A and ends at another apex of the square or in the middle of another side of the square at a point B, - is tangent at A and at B to the lines respectively linking the centre of the square to points A and B, - necessarily belongs to one of six different sets of trajectory portions, the circuit comprising, for each portion (6), only one guide piece capable of guiding the vehicle along this trajectory portion. The circuit comprises at least five trajectory portions, each belonging to a respective set different from the sets to which the other trajectory portions of the six possible sets belong.</p> |
