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alkene ['ælki:n] n
gen.	烯属烃
agric.	［链］烯烃 (CₙH₂ₙ)
auto.	烷烃; 链烷烃
chem.	链烯烃; 烯属烃; ★ 烯
oil	★ 链烯; 烯烃

alkene : 12 phrases in 3 subjects

Chemistry	9
Technology	2
Water resources	1