A second group of biotechnologies can be used for planted forests that provide industrial raw materials on a large planting scale.

第二组生物技术可用于提供工业原料的大规模人工种植林。

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Another important group of petrochemical raw materials are the aromatic compounds, principally benzene, toluene and xylenes, which are mainly produced by catalytic reforming.

另一组重要的石油化学品原料是芳香烃化合物，主要是苯、甲苯和二甲苯，主要由催化重整制得。

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The first group: Lv Zhenliang is responsible for the supervision of raw materials factory, iron plant activities.

第一组：吕振良负责督导原料厂、炼铁厂活动的开展情况。

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The independent group certifies products and services as environmentally friendly through a life-cycle evaluation - looking at the raw materials and the manufacturing process, transportation and recycling of old products.

VOA: standard.2009.03.30

"It is only the surface that has been scraped for metals around the world, " said Magnus Ericsson, a senior partner at Raw Materials Group, a Solna, Sweden-based consultancy.

WSJ: Exhausting the Earth's Resources? Not So Fast