But diesel and petrol fumes have a mixture of pollutants.

但是，柴油和汽油烟味混合也产生污染。

youdao

But diesel, which is generating concern about pollution in parts of Europe, where it is a more popular fuel than in America, was marginally cleaner than petrol.

但是在欧洲的某些地区，柴油引起了关于污染的担忧，因为柴油在欧洲要比在美国使用得更广泛，柴油在过去要稍稍好于汽油。

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Diesel will cost more, but petroleum-based diesel sells in America for 57 cents a litre before distribution costs and tax, so there should be room for profit.

柴油的价格会更高，但石油基柴油在美国的销售价格为每升57美分，不含分销成本和税金，因此应该有获利空间。

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But the study says it can be more economical in the long term than using fuels like gasoline, diesel or kerosene.

VOA: special.2010.01.11

The engine performs with a level of efficiency close to diesel, but sacrifices some of the power density.

FORBES: The Other "Hybrid Engine"

"I've worked on diesel, but there's nothing like steam and the Gresley locos were the best of them all, " he said.

BBC: The Mallard locomotive

Hygen has the strength and ruggedness of a traditional diesel generator but uses less than half the fuel in most applications.

FORBES: Hurricane Sandy Demonstrates Need For Off Grid Hybrid Generators