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ethene ['eθi:n] n
agric. 乙烯 (C₂H₄)
chem. 1,2-亚乙基
met. 乙烯 (C2H4)
oil 亚乙基
space 乙烯; 次乙基
ethene
: 4 phrases in 2 subjects
Automobiles1
Plastics3