The kinetics and mechanism of exciplex formation of 9,10 - dicyanoanthracene ( DCA ) by acenaphthenone ( ANO ) have been studied.研究了苊酮 ( ANO ) 对9,10-二氰蒽 ( DCA ) 的荧光猝灭与激基络合物形成的动力学与机理....
他用一块桦木做一只小船.He used a piece of birch to make a small boat.只有杨木和桦木的原木出货高于去年.Only Poplar and Birch log shipments are up for the year.利用均匀设计法优化了微波辅助提取白桦树皮中桦木醇的工艺.The microwave - assisted extraction ( MAE ) of betulin from B...
" All right,'said Drouet, brightening.“ 好的, "杜洛埃说, 又快活起来.'Oh, we'd love to!' cried Nancy, her face brightening.“哦，我们很乐意！”南希面露喜色，大声说道。"Oh, we'd love to!" cried Nancy, her face brightening.“哦，我们很乐意...
...nerve nodes.神经结The problem appears to be caused by a logjam of nerve messages.据《每日邮报》1月28日报道,常言道“一心不能二用”,而引起这一问题的关键可能是神经讯息在传递过程中受到了阻碍.The sympathetic nerve distributing cerebral vessels originates from the cervical sy...