In the Olympic Green, no emission or ultra-low emission vehicles will be used.

奥林匹克公园内采用零排放车辆和超低排放车辆。

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Low emission vehicles — a class of vehicles that can satisfy much more stringent emissions standards than currently imposed on conventional vehicles.

地排放车辆——比当前要求规章车辆符合更严格排放标准的一个级别车辆。

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The German carmakers in particular, with their huge research-and-development budgets, are dabblingin all manner of different low-emission vehicles.

尤其是拥有庞大的研究和开发预算的德国汽车制造商，研究涉及低排放汽车的多种实现方式。

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While diamond lane access ended for solo drivers of low-emission vehicles, it continues for solo drivers of ultra-low-emission vehicles.

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The government says it has tried to reduce emissions of nitrogen dioxide through tax breaks and subsidies for low emission vehicles.

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The German carmakers in particular, with their huge research-and-development budgets, are dabbling in all manner of different low-emission vehicles.

ECONOMIST: Renault's electric-car gamble