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 ...
She sighed, then continued in a soft, calm voice.她叹了口气，然后继续用温柔、平静的声音说下去。The dogs continued to paw and claw frantically at the chain mesh.那些狗继续用爪子疯狂地抓铁丝网。She continued to have severe stomach cramps, aches, fatigue, and de...