Epoxidation and oxidation gave the racemic C 18 - juvenile hormone.通过环氧化和氧化就得到外消旋的含十八个碳的昆虫返动激素.In the epoxidation, chloroform and t butanol gave the best results.在环己烯环氧化反应中, 以氯仿和叔丁醇为溶剂时,环氧化反应的结果最好.Recent progress on asym...
All three doctors are certified as addictions specialists.3个医生都是持有执业证书的瘾症专家。The bank marks the check "certified"银行在支票上标有“保付”的字样。The bank certified my accounts.银行核实了我的账目....
When she smiled, her eyes resembled a pair of crescent moons.她那双眼睛,笑起来就像一对月牙儿.They decided a housing co-operative was the way to regenerate Ormiston Crescent...他们最终决定通过住房合作社来重建奥米斯顿月牙街。...a narrow crescent of sand dunes.狭...