The modified organism ferments sugars in the biomass to produce isoprene, in such a way that it bubbles out as a gas.

这些改良的大肠杆菌发酵生物质中所含的糖类以生合成异戊二烯，并以气体形式释放出来。

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A second process, called thermochemical pyrolysis, USES high temperatures and pressures to convert cellulosic biomass into long hydrocarbon chains that are similar to gas, diesel or jet fuel.

第二种方法也被称作“反应炉裂解法”：利用高温和压力将纤维素生物质转换成长烃链，这种长烃链和汽油、柴油、喷气式发动机燃料相类似。

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The pair considered three aspects of global livestock production: greenhouse gas emissions, biomass consumption and nitrogen emissions.

两位研究人员考虑了全球畜牧业生产的三个方面：温室气体排放，生物质消耗和氮排放。

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In some markets, some of the time, biomass, geothermal, landfill gas and waste-to-energy can compete on price with carbon-based fuels.

ECONOMIST: When virtue pays a premium | The

From wind and solar, to waste and biomass to energy, fuel cells, co-generation, natural gas, and smart grid, speakers and attendees discussed a diverse portfolio of advanced energy technologies that are being developed and deployed in Ohio.

FORBES: The Business of Advanced Energy

The air force is working to certify all its aircraft to use synthetic fuels made from gas derived from coal or biomass, using the Fischer-Tropsch method used by Germany during the second world war.

ECONOMIST: Monitor