The effect of acidity on synthesis of phenylbiguanide additive reaction of aniline with dicyandiamide was studied.研究了酸度对苯胺与双氰胺加成反应生成苯基双胍的影响.Major Composite of thc SeaIant is bisphenol A epoxy resin, dicyandiamide, ureido...
The Company received a commendation from the Royal Society of Arts.公司受到了皇家艺术协会的赞扬。a commendation for bravery因勇敢而受到的嘉奖His dearest friends could not be dissatisfied with such commendation as that.他的最亲密的朋友也不会对这样的称赞感到不满意....
以二甲基亚砜为萃取溶剂,用溶剂萃取的方法提高焦化柴油的颜色安定性.Colour stability of coker gas oil has been improved by DMF extraction.以物质A为反应物,白土为脱色物质,研究用反应-吸附的方法提高焦化柴油的质量.A coking gas oil was treated by clay refining processs in laboratory.在这道门里, 焦化和...
I bought lollipops and a toot - toot bugle. I started for home.我给她买了棒棒糖,一吹就呜的打响的小喇叭. 我就往回走.Our company specialize marshmallows, lollipops , bubble gums, chocolates and toys with candy.本公司主要出口棉花糖 、 棒棒糖 、 泡泡糖 、 巧克力、儿童玩具等.D...
他被撞见拼命想要解开几盘缠在一起的胶卷。He was found desperately trying to untangle several reels of film.父母突然回家，撞见他俩拥抱在一起。They were caught in a clinch when their parents returned home unexpectedly.我们撞见他正在窗外偷听。We caught him eavesdropping ou...
Expression of the exogenous genes was confirmed by assay of � � - galactosidase and glucokinase activity.基因的表达通过β 半 乳糖苷酶和葡糖激酶活性测定得到确证.Objective To observe the replicative senescence - related beta - galactosidase activit...