常見例句用作名詞 (n.)A new extracting agent of piperidine derivant was synthesized.合成了一種新萃取劑哌啶多氮衍生物。The crude dye is collected on a filter and then recrystallized from ethanol containing a small amount of piperidine.粗染料過濾，然后在少量含有哌啶的乙醇中重結(jié)晶。 返回 piperidine