| 摘要 |
<p>A vehicle, such as a public transport vehicle or a“civil engineering plant”vehicle, comprising at least two axle systems, at least one of them comprising at least two twin-mounted sets fitted with tires. Each of the treads of the tires fitted to two twin-mounted sets comprises at least on its exterior surface at least two circumferential parts made of polymer blends that have different physico-chemical properties, the distributions of the said polymer blends in the treads of each of the tires being symmetric with respect to a longitudinal plane passing through a point mid-way between the two twin-mounted sets.</p> |
