Both ionization and excitation lead to eletronic transitions that may be the emission of light.电离和激发都将导致可能伴随有光发射的电子跃迁.Forbidden transitions are those for which dipole radiative transitions are not allowed by the selectio...
The transitions of bisphenol A and phenolphthalein oligo -- polysulfones were inves - tigated by DSC.本工作用示差扫描量热法(DSC)研究了双酚A型和酚 酞 型两种聚砜预聚物的转变.Forbidden transitions are those for which dipole radiative transitions are not ...
过氧化苯甲酰 、 特别是偶氧二异丁腈不参加链移反应.Benzoylperoxide, and especially azobisisobutyronitrile, do not take part in transfer reactions.聚乙烯醇 的耐辐解可通地苄叉化和苯甲酰化提高.Poly ( vinyl alcohol ) has been protected against radiation by benzalation a...
她撕下两格纸巾，然后纵向对折。She tore off two sections of paper towel and folded them lengthwise.她伸手拿纸巾擤鼻涕。She reached for a Kleenex and blew her nose.一盒纸巾a box of Kleenex...
Joseph watched a shady-looking bunch playing cards aboard a Mississippi steamer.约瑟夫看到一群可疑的人在密西西比河的一艘轮船上打牌。She invited 750 people aboard the luxury yacht, the Savarona.她邀请了750人乘坐豪华游艇“萨瓦罗纳”号。A large stash of drugs had been...
The police used torture to extort a confession from him.警察对他用刑逼供.The blackmailer tried to extort a large sum of money from him.勒索者企图向他勒索一大笔钱.The police used torture to extort a confession from me.警方用刑逼我口供....
Duke was soundly defeated in this month's Louisiana governor's race.杜克在本月的路易斯安那州长竞选中大败而归。He is a candidate for the office of Governor.他是州长候选人之一。He was widely respected as a wise and statesmanlike governor.他作为一位...
He's working like mad at the moment.他眼下正在拼命地工作。I was very frightened and clinging on like mad.我很害怕,拼命地向上爬.Thrusting themselves into the spirit of the farce, they ham it up like mad.他们全力投入到这部闹剧中去，极尽搞怪之能事。...
I trailed her into Penney's and struck up a conversation.我跟着她进了彭尼家然后开始交谈起来。I trailed her to a shop in Kensington.我跟踪她来到肯辛顿的一家商店。He trailed through the wet Manhattan streets.他没精打采地走过曼哈顿湿漉漉的街道。...