用 4- 氨基安替比林与 3- 甲酰基色酮 、 肉桂醛、茴香醛反应分别合成了3种新的席夫碱化合物.Three novel Schiff bases were synthesized using the reaction of 4 - aminoatipyrine with 3 - formylchromone, cinnamaldehyde and anisaldehyde.从茴香油生产茴香醛的废渣、废液中提取副产品茴香酸,合成茴香酸甲...
As the era wore on, she switched her attention to films.随着这个时代慢慢过去，她把目光投向了电影业。In half an hour, they'd switched the tags on every cable.半个小时内，他们就给每根电缆都换了标签。She emptied both their mugs and switched on the electric ket...
The government has contemplated reforming the entire tax system.政府打算改革整个税收体制。Various ceramic materials have been suggested as supports for reforming catalyst.各种陶土管用作转化催化剂的载体.Reforming Warsaw's stagnant economy requi...
The air reeked of kerosene and huge aircraft rumbled overhead.空气中散发着煤油味，巨型飞机在头顶隆隆地响着。A leakage of kerosene has polluted water supplies.泄漏的煤油污染了水源。It is like putting out a fire with kerosene.这就像用煤油灭火....