dimethylene methane二烯
dimethylene adipate活性炭
dimethylene ether醚
Dimethylene Sulfide环硫乙烷
dimethylene-biaddition二亚甲基双加成
polycyclohexyl dimethylene terephthalate聚对苯二甲酸
HMDUhexamethylene dimethylene urea六次甲基二甲基脲
dimethylene ether linkage醚键
NCDD nickel dimethylene dithiocarbamate二次甲基氨