吡咯, 噻酚和呋喃的情况就是这样.Such is the case in pyrrole, thiophene, and furan.研究结果表明关键步骤为原料 4- 甲基 -2, 3- 呋喃二酮的合成.It'shows that the key step is the synthesis of 4 - methyl - dihydro - furan - 2 , 3 - dione.用糠醇和糠醛缩聚制备了新型呋喃树脂.A n...
Circumstances dictated that they played a defensive rather than attacking game.比赛形势决定了他们要打防守战而不是进攻战。The effect is soft and pretty rather than drop-dead sexy.给人的印象是柔和俏丽而不是吸人眼球的性感。Really it's a workmanlike conference ...
For good measure, a few details of hotels were included.除此之外还包括对宾馆的一些详细介绍。I repeated my question for good measure.另外，我重复了我的问题。He sold me the car at a cheap price and included the radio for good measure.他以便宜的价格把汽车卖给了我,外加这...