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production process of light olefins
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production process of light olefins
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工学
低碳烯烃生产工艺
释
production process of light olefins
低碳烯烃生产工艺
生产低碳烯烃的工艺技术。低碳烯烃也称作低级烯烃,主要指乙烯、丙烯和丁烯,有时也包括丁二烯。低碳烯烃是重要的基本有机原料,也是石油化工的龙头产品。随着现代化学工业的发展,对低碳烯烃的需求日渐攀升。
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promoting blood circulation for removing obstruction in collaterals
promoting blossom and fruiting
promoting circulation of qi/activating qi flowing
promoting eruption
promoting granulation and wound healing
promoting qi
promoting qi circulation to induce diuresis
promoting qi to activate blood
promoting Spleen Yang
promotiona advertisement
Promotional Personnel Advertisement
Promotion and selection
promotion energy
promotion from within
promotion incentives
promotion mix
promotion of agricultural products
promotion of improved forest varieties
Promotion Plan of Special Education: 2014—2016
Promotion Pricing
promotion tournament
prompt
Prompt Assessment of Global Earthquakes for Response
prompt critical
prompt fission neutron
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