The nucleophiles include alkene, alkyne, alcohol, acid, amine, water, etc.亲核试剂包括烯烃 、 炔烃 、 醇 、 酸 、 胺 、 水等.The hydrocarbon must be an alkene.这个碳氢化合物必定是烯烃.A hydrocarbon was known to be either an alkene or alkane.某碳氢化合物已知可能是...
Mount Unzen has been spewing out volcanic ash, gas, and rock today.云仙山今天一直在向外喷涌火山灰、气体和火山岩。He was still spewing forth in public such offal about Mary Lincoln.他还在公众场合散布关于玛丽·林肯的这样一些谰言.The typewriter were spewing out status ...
She undressed and put her wet clothes in a neat pile in the corner.她脱掉衣服，把湿衣服整齐地码成一堆放在角落里。The writing on the back of the card was cramped but scrupulously neat...这张卡片的背面写满了密密麻麻但却十分工整的字。The neighbours' gardens were t...
他送给女友一枚镶着蓝宝石的订婚戒指。He gave his girlfriend a sapphire engagement ring.现在让我们考虑象钻石和蓝宝石这样的晶体.Now let us consider crystals such as diamond or sapphire.现在让我们考虑象金刚石和蓝宝石这样的晶体.Now let us consider crystals such as diamond or sopphi...
利用免疫电泳、向琼脂扩散试验分析和测定抗血清的效价.The titer of antiserum was detected by immunoelectrophoresis and double immunodiffusion.Western—blot分析表明σC和 σB蛋白 均与ARV抗血清产生特异性反应.Western - blot analysis with ARV - positive serum showed the fusi...