gc standards -cyclic hydrocarbons环烃: cyclic hydrocarbon双环烃类: dicyclic hydrocarbons环烃: [化学] (闭链烃) cyclic hydrocarbon烃类: alkanes; hc hydrocarbon; hydro carbons; hydrocarbon compounds; hydrocarbons闭环烃: closed-ring hydrocarbons下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:环烃类，即可在微信中查询翻译
