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 fading reaction of DCB arsenazo with Cr 2 O 2 - 7 was studied.本文研究了DCB偶氮胂与Cr2O2-7的褪色反应.Cars were covered with clear-coat finish at the factory to protect the underlying paint from fading.工厂给汽车上了透明罩漆，以防底漆褪色。Hopes of a...
The public never had faith in his ability to handle the job...公众从来不相信他有能力胜任这一职位。People had very few amusements to choose from. There was no radio, or television.人们几乎没有什么消遣可以选择。没有广播，也没有电视。Mark had for some time been makin...
But she , with a pucker in her brows, was watching Rhett.可思嘉正蹙着眉头在看瑞德.You gotta pucker up your lips, like this . Hm.你必须撅起你的双唇, 就像这样.This waistcoat has a propensity to pucker up over the chest.这件背心的胸部常常要皱拢来....
如果你是比利·克里斯托的影迷，你会喜爱这部影片。If you're a Billy Crystal fan, you'lllove this movie.在布里斯托尔附近的5号高速公路上，南行的车辆排成了绵延20英里的长龙。Southbound traffic tailed back for twenty miles on the M5 near Bristol.惠特比镇因为布拉姆·斯托克著名的吸血鬼故事而名传后世。...
The garden was a fairyland of beautiful flowers and sweet odors.那座花园是个繁花似锦、香气袭人的仙境.Cooking odors can circulate throughout the entire house.做饭的香味可以传到家里的各个角落。The odors pleasing to most human noses are used as perfumes.这些使大...