double decomposition reactiondouble decomposition reationdouble-decomposition reactionmetathesis reaction (chemistry)metathetical reactionmetatheticalreactionreplacement reaction反应: neaction环复分解反应: rcm直换反应;复分解反应: replacement reaction置换反应 复分解反应: replacementreaction烯烃复分解反应: olefin metathesis下载手机词典可随时随地查词查翻译