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...
前段提出的范围问题的答案是显而易见的.The answer to the scope question posed in the previous paragraph is an obvious one.引流肺上叶的肺前段, 把枕头放在你的腿上,让小儿仰卧在枕头上.To drain upper lobes , anterior segments, place the child supine on a pillow in your la...
The company closed down operations and began liquidating its assets in January.公司停止了各项业务，于1月份开始变卖资产。Liquidating collateral is clearly a second best source of repayment. Why?抵押品显然并不是获得贷款偿还的最佳方法. 为什么?There are often costs ...