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.
Viewers will remember the dashing hero, Dirk, risking life and limb to rescue Daphne from the dragons.观众不会忘记风度翩翩的男主角德克冒着生命危险把达芙妮从恶龙爪下救出的情形。Barry's speech followed Dirk Bogarde's appearance, and was an inevitabl...
This was not by any means a daring expedition into the outback, it was a very unambitious exploration.这绝不是什么冒险深入内地的远征，只是一次平淡无奇的探险而已。He tells the patient to use some medicine from a outback.用来指导病人用药.At Outback Steakhouse,...
It was no defence to plead that they were only obeying orders.辩称他们只是在服从命令站不住脚。In justification of his conduct, he pleaded that he was merely obeying orders.他推说他仅是在遵照命令行事来为自己的行为辩解.A material obeying ohm's law is call...