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 ...
His eardrum was broken in the accident.在事故中他的耳膜破了.Objective To improve clinically recognition of the eardrum - mastoid process operation.目的提高临床对中耳乳突手术的认识.If the eardrum has been broken, never try irrigation.如耳膜破裂, 则绝对不可灌...
Houses had sprung up out of nowhere on the hills.山丘上突然冒出一幢幢的房子。The yacht has sprung a leak in the hull.帆船的船体上出现了一条裂缝。A range of buildings have sprung up along the river.沿河建起了一排楼房....
如果换作我写这封信，我或许会用不同的措辞。If I had written the letter, I might have worded it differently.我让她原原本本地重复一下帕蒂的措辞。I asked her to repeat specifically the words that Patti had used.他说起话来合乎情理，措辞谨慎，而且说服力强。He spoke reasonably, carefully...