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...
The authors propose a method using conjoint analysis for multipart pricing.作者在文章中提出一种用于分部定价的联合分析方法.In addition , the application of some advanced conjoint analysis technique were also briefly introduced.同时简要介绍了一些先进的联合分析法...
The usher marshalled people into the public and press galleries.迎宾员引领人们进入公众和媒体画廊.And they all said yes, feeling somehow like prisoners marshalled for exercise.他们全都表示赞成, 但不知怎的都有一种如同囚犯集合起来去放风的感觉.I have finally marshalled t...