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....
It was Swank's judgment that he had become irrelevant.斯旺克的评价是,此人已无足轻重了....a swank new shop on the outskirts of Beijing.北京郊区新开的一家高档时尚商店Meanwhile swank restaurants crammed downtown Reykjavik, the capital and new finan...
由于你方所提供的条件不能接受,我只得辞谢.I must decline because the conditions offered are not acceptable.您那令人神往的邀请我不得不辞谢了.这是多么遗憾 啊 !How awful to have to turn down your very , very tempting invitation!很抱歉, 我不得不辞谢.Regretfully, I must decline...