The activation energy for dehydration reaction has been calculated by Freeman - Carroll method.采用Freeman-Carroll方法计算了配合物脱水过程的活化能和反应级数.Ron Freeman appeared pasty faced and nervous.罗恩·弗里曼脸色苍白，显得很紧张。Peter was made a Freeman...
The technique has been to mutate the genes by irradiation or chemicals.该技术是通过放射线照射或者使用化学方法使基因变异。A newer anti-HIV drug called pyridinone caused HIV to mutate into a form which could not reproduce or infect new cells.一种叫作吡...
Deliberate before you begin, then execute with vigour.著手前要深思熟虑，执行要果断有力。He was a man of extraordinary vigour and liberality of mind.他是个生气勃勃和思想非常开朗的人.A succinct style lends vigour to writing.措辞简练使文笔有力.His body lacks the bo...