常见例句Keywords cedar wood oil cedrene cedrol GC/MS; 柏木油;雪松烯;雪松醇;气相色谱／质谱;Keywords cedrene;preparation;isomerization;rectification; 柏木烯;制备;异构化;精馏;acetyl cedrene 乙酰柏木烯cedrene camphor [医] 铅笔柏脑 返回 cedrene