| 摘要 |
<p>A roulette wheel includes a central spindle, a wheelhead and turret unit freely rotatable around the central spindle, a cone freely rotatable around the central spindle independently of the wheelhead and turret unit, and a lower ball track. The lower ball track can be stationary or can be freely rotatable around the central spindle independently of the wheelhead and turret unit and of the cone.</p> |
