This paper considers the entire life cycle of DME process that include raw materials mining and transport process, fuel product and transport and use process.

本文考虑二甲醚的全生命周期过程，包括其原材料开采及运输、燃料生产及运输以及使用过程。

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Enterprise business scope mainly for chemical products and raw materials, textiles, cosmetics, health care products, arts &crafts, machinery and mining mechanical and electrical products, etc.

企业经营范围主要为化工产品及原料、纺织品、化妆品、保健品、工艺美术品、农机具以及工矿机电产品等。

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The main raw materials of synthetic detergent, apply filter cleaning agents, water scale, corrosion, metal rust agents, anti-oil and paper industry mining, oil, paint and other industries.

合成洗涤剂的主要生产原料，同时适用于过滤清洗剂，水处理阻垢，缓蚀剂，金属除锈剂，造纸工业防油剂以及矿山、石油、颜料等工业。

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"Together, Alpha and Cleveland-Cliffs will have the size, the management depth and the mining expertise to compete on the global stage as demand for raw materials continues to increase around the world, " Alpha Chairman Michael Quillen said in a statement to the press.

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Caterpillar, for example, bought mining equipment firm Bucyrus International this week largely to take advantage of growing emerging market demand for raw materials.

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These companies are principally engaged in the business of producing raw materials, including paper or wood products, chemicals, construction materials, and mining and metals.

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