...a bomber with twin engines and heavy defensive armament.配有双引擎和重型防御装备的轰炸机Do you believe in nuclear dis - armament?你认为真能裁减核军备 吗 ?There is a tendency toward increased armament.有军备增强的趋势.In 1937 he was seconded to the Roya...
A new method for determining hydrazide group introduced to polymethyl acrylate resin was established.研究了一种测定聚丙烯酸甲酯上酰肼基团分布的新方法.The instrument can be applied for determining turbidity of sea water, brines and other samples...
Since she'd offered to babysit, I took her up on it.她既然主动提出帮助照看孩子，我也就同意了。You can take it in turns to babysit.你们可以轮流照看孩子。My friend asked me to babysit for her six-month-old son.我朋友请我临时看顾她6个月大的儿子。My friend asked me to...
Thus , this reduced temperature of reaction and increased the rate of acetophenone.降低反应温度,提高了苯乙酮的收率.Objective: A new approach to prepare α - bromo - 4 - benzyloxy acetophenone was introduced.目的: 报道一种合成α - 溴-4-苄氧苯基乙酮的新方法....