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.
The real purchasing power of the rouble has plummeted.卢布的实际购买力骤然下降。The jet burst into flames and plummeted to the ground.这架喷气式飞机突然着火，急速坠地。In Tokyo share prices have plummeted for the sixth successive day.东京股价已连续第6天猛跌。...