北京将推出最严格的汽车尾气排放标准。
Beijing is to roll out toughest automobile emission standards.
越来越严格的汽车尾气排放标准对用于尾气净化的材料提出了更高的要求。
Automobile exhaust gas emission standards are more stringent, which need better material than before.
这些措施包括迁出高污染行业、引入更严格的汽车尾气排放标准并大面积植树等。
These included the relocation of heavy-polluting industries, the introduction of stricter car-emissions standards and a massive reforestation project.
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