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propadiene
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propadiene
Encyclopedia
理学
丙二烯
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propadiene; allene
丙二烯
最简单的含累积双键的烯烃。常与丙炔共存于石油裂解制乙烯过程中产生的碳三馏分中。分子式CH2═C═CH2。
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educational tradition
educational work of archival science
education and correction
education and research of electronic commerce
education and scientific research map
education and training of the people's police
education assistance
Education at a Glance: OECD Indicators
education cloud
education communication
education contract
education curation
education custom
education during the period of Late Qing reforms
education festival
education financed by religious assets
Education-first Model of China's Social Work Development
education for all
Education for All Handicapped Children Act of 1975
education for children with physical disabilities
education for illiteracy
education for international understanding
education for national minorities
education for sustainable development
education for the disabled
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