所有专利巴士已转用超低硫柴油。
All franchised buses have already switched to ultra-low sulphur diesel.
截至1998年底，领有牌照的非专利巴士共有6305辆。
At the end of 1998, the licensed fleet of non - franchised buses amounted to 6305 vehicles.
使用道路的乘客中，过半数乘搭专利巴士，其余则由绿色专线小巴、公共小型巴士、的士及非专利巴士运载。
More than half of public transport journeys made by road were on franchised buses, and the remainder on green minibuses, public light buses, taxis and non-franchised buses.
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