The synthesis of ν - curcumene was described. The experiment affirmed that ν - curcumene can aromatize to α - curcumene readily at room temperature. 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 77,000-acre estate contains five of the highest peaks in Scotland.7.7万英亩的私人土地上有5座苏格兰最高的山峰。There have been peaks and troughs in the long-term trend of unemployment.长期以来失业率一直时起时伏。We looked up at the rocky peaks towerin...
It'should only take me a few minutes to redirect the power to the drive wheels.应该只花我几分钟来改变能量到驱动轮上.Controls were used to redistribute or redirect resources.采用了管控措施来重新分配资源或改变其流向。Provide the ability to stop this redire...
Keep still while I fasten shoe.站着别动, 我给你系鞋带。He entreats a bowstring to be fastened on the arm, must not fasten on the neck.他请求把绞索系在手臂上, 千万不要系在脖子上.Fasten your seatbelts, please.请系好安全带。Fasten your seat belts.系好安全带。Paul · o...