However,if the health-related air quality objectives are to be met,light duty diesel vehicles such as taxis,and public light buses,will have to switch to cleaner fuels such as liquefied petroleum gas (LPG).
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释义
不过,要达至符合健康的空气质素指标,轻型柴油车辆如的士和公共小型巴士,必须改用污染量较低的燃料,例如石油气。
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