The collected cooking oil is refined and recycled for use as biodiesel fuel (BDF) in the very same buses, which run on 12 routes through the city.

收集上来的食用油通过提炼，最终变成生物柴油，为运营在该市12条线路上的快速公车提供燃料。

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People ask if biodiesel is a dangerous fuel.

人们问，生物柴油是不是一种危险的燃油。

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The algae can also be processed and used to create biodiesel fuel and fertilizer, as well as food for farm animals.

藻类经过处理后还能用来制造生物柴油、肥料和饲料。

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"Everything from crayons to jet fuel," Soy-based biodiesel fuel is making its way into the market today, along with carpeting, roofing materials,inks, adhesives and more.

VOA: standard.2010.02.01

We're expanding the use of hybrid and clean diesel vehicles and biodiesel fuel.

NPR: President Bush's Remarks on the World Agenda

One innovative company, Grease Lightning, based in New York City, has been purchasing used cooking oil from local restaurants to convert into biodiesel fuel since 2011.

BBC: Cooking oil powers transatlantic flights

The fuel, known as Biodiesel B20, is made from 20% algae and 80% petroleum.

BBC: Quiz of the week's news