单词 | piperylene |
释义 | piperylenenoun piper·y·lene pīˈperəˌlēn, pə̇ˈp-; ˈpipər- plural -s : an oily diolefin hydrocarbon CH3CH=CHCH=CH2 isomeric with isoprene formed in the cracking of petroleum and also made synthetically (as by exhaustive methylation of piperidine); 1,3-pentadiene |
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