用金属锂 - 液氨一步还原法合成γ姜黄烯.实验证实γ姜黄烯极不稳定,室温下极易芳香化转变成α姜黄烯.The synthesis of ν - curcumene was described. The experiment affirmed that ν - curcumene can aromatize to α - curcumene readily at room temperature....
Everyone wanted to bowl, hence everyone wanted to open a bowling alley.大家都想玩保龄球，因此大家都想开保龄球馆。We live in the same alley.我们住在同一条小巷里。Each front door looks across a narrow alley to the front door opposite.家家大门对大门，中间隔着一条窄巷。Dal...
The economic gloom of the early 1980s was relieved by fanciful architecture.20世纪80年代初期的经济萧条气氛因各种奇异古怪建筑的出现而有所缓解。Designing silicon chips to mimic human organs sounds fanciful.设计硅芯片模仿人的器官听上去是异想天开。a fanciful gold border别出心裁的...
他的双体船的速度可以达到37节。His catamaran will do 37 knots.我们称这些复制的染色体为双体.We can refer to these duplicated chromosomes as making up a doublet.因此, 采用双体结构型式的非自航工程船舶具有很好的应用前景.Therefore, the nonpropelled double - hull engineering ship h...
鼻出血则约占10%.Epistaxis occurs in about 10 per cent.目的: 探讨鼻出血的原因 、 部位及有效治疗方法.Objectiye: To explore the causes, locations and effective treatment of nosebleed.目的探讨选择性颈外动脉栓塞治疗鼻出血的方法、疗效及并发症.Objective To evaluate the selective e...