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气相法丙烯聚合工艺
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气相法丙烯聚合工艺
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气相法丙烯聚合工艺
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vapor phase propylene polymerization
气相法丙烯聚合工艺
采用搅拌床或流化床反应器,丙烯气体通过反应器在催化剂作用下直接聚合得到干燥粉料的一种聚合工艺。
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economic evaluation of investment on grassland
economic evaluation of railway investment
economic evaluation of resources
economic faction
economic feasibility
economic feasibility analysis of safety engineering
economic fineness
economic forecast
economic forest breeding
economic formation of society
economic foundation
economic function of green space
economic functions of the socialist state
economic geography and public policy
economic geography of forestry
Economic Geography: the Integration of Regions and Nations
economic globalization
economic governance
economic growth
Economic Growth and Agriculture
economic growth factor
economic growth theory
economic hinterland
economic impacts of the port
economic incentive instruments
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