用于测量汽车排放废气中的HC及CO气体浓度，采用国外先进技术，进口关键零部件组装而成。

Used to measure vehicle emissions of HC and co gas concentrations, using advanced foreign technology, import the key components assembled.

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燃料电池汽车不排放废气，产生的是脂肪酸盐和水。

Instead of exhaust fumes, the fuel-cell car produces soap and water.

《柯林斯英汉双解大词典》

铂：在珠宝中被普遍使用，在我们的汽车的控制废气排放的装置中，铂的使用更为常见。

Platinum (Pt): Most familiar for its use in jewelry, platinum is more often used in the systems that control vehicle emissions in our cars.

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Clearly, if I did nothing more, but I took every car, doubled its fuel economy, its emissions would go to 50% of what they are now, no other changes being made.

显然，如果我什么也不做，但是我把没量车的汽油价加倍，汽车废气排放量就会是现在的一半了，别的不会有什么改变。

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