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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America has abundant natural gas reserves, and he wants natural gas to replace petroleum-based vehicle fuels.

美国具有丰富的天然气藏量，他计划用天然气来取代基于石油的车辆燃料。

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Some bioplastics have a higher environmental footprint than certain petroleum-based plastics, research finds.

研究发现，一些生物塑料比某些由石油制成的塑料拥有更高的环境足迹。

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He points out that traditional flowerpots made from petroleum-based plastics can last much longer.

VOA: special.2010.06.01

Eleven workers are missing. British Petroleum leased the rig, owned by Switzerland-based Transocean.

VOA: special.2010.05.01

(Obama's Speech) In crafting the U.S.response to global climate change, the president said congressional lawmakers must take into account the real price of America's heavy reliance on petroleum-based energy.

VOA: standard.2010.06.14

Input prices continued to rise, particularly for fuel, other petroleum-based materials, metals, food, and chemicals.

FORBES: Beige Book Paints A Neutral Picture

Current cellulose based plastics include large amounts of petroleum-based additives, which results in a low plant component ratio.

ENGADGET: NEC builds a better bioplastic from plant stems and cashew nut shells

Cobalt is aiming to produce biobutanol for as much as two dollars per gallon less than petroleum-based butanol.

FORBES: Cobalt Technologies Pushes The Green Chemical Envelope