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....
Neural networks are computer systems which mimic the workings of the brain.神经网络是模拟大脑工作方式的计算机系统。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。He could mimic anybody.他可以模仿任何人。...
乙烯和反式二氯乙烯在红外光谱的这个区域都无活性.Ethylene and trans - dichloroethylene are both inactive in the infra - red in this region.光谱的原色是红 、 绿、蓝.The primary colors of the spectrum are red, green and blue.原子光谱的研究能给出原子能级信息.Investigation of...