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Atom, molecule or radical can be excited to a specific intermediate state by absorbing m laser photons, then the parent ion can be produced by absorption of another n laser photons. The ion yield can be increased drastically due to resonant absorption, comparing with the ion yield in non-resonant absorption. This multiphoton process is usully called Resonance Enhanced Multiphoton Ionization. REMPI technique plays an important role in detecting the high electronic excited states of atoms, molecules and radicals.

原子、分子、离子或自由基在同时吸收m个光子从下态共振跃迁到中间态后再吸收n个光子使其电离的过程中，下态和中间态的多光子共振吸收使得产生的离子信号强度比相应的非共振多光子电离得到的离子信号强度有很大的增强，该过程称为共振增强多光子电离REMPI。

Excitations from localized states to the conduction band account for the absorption edge shift toward lower energies observed in the case of N/TiO_2 with respect to pure TiO_2.Mixture of visible light absorption of nitrogen doping and oxygen defect gave no obvious onset in the whole range between 400 and 800nm were observed of the samples N/TiO_(2-)A and N/TiO_(2-)M.

UV-VIS-DRS分析掺杂N/TiO_2结果表明，N/TiO_2-H和N/TiO_2-T两种催化剂在490nm处有吸收带边，可见光激发途径是掺杂的N以填隙方式形成的杂质能级吸收电子发生的跃迁引起的；而N/TiO_2-A和N/TiO_2-M两种方法得到的N/TiO_2在整个可见光区域内具有可见光吸收，没有显著的可见光吸收带边，其对可见光的激发途径是掺杂N和氧空缺共同作用的结果。

The refractive index,absorption spectra and luminescent decays were measured.

测量了玻璃的折射率、吸收光谱及4I13/2→4I15/2跃迁的荧光寿命。

The calculated results indicate that the dielectric function, complex reflectivity index and absorption spectra of the crystal are related to the electronic structures of the crystal.

介电函数的虚部、吸收光谱、折射率等的峰值位置存在一一对应关系，这与电子从价带到导带的跃迁吸收有关。

In stellar spectra, the H - epsilon line ( transition 7-2) is often mixed in with another absorption line caused by ionized

在恒星光谱中，H -ε线(7跃迁至2)经常会与其他的吸收谱线混合，天文学家都知道电离的

Therefore, the energy of π(superscript *) orbit decreases, the probability of optical absorption increases, the n→π(superscript *) electronic transition enhances, and the absorption band broadens and shows red-shift. The above phenomenon will result in the degradation of optical properties of ZnO/silicone white paint under proton exposure.

同时Si-O-Si链内氧原子未成键的孤对电子与邻近硅原子的3d空轨道配位，降低了π轨道的能量，提高了对光吸收的几率，增强了n→π电子跃迁，使吸收带红移，从而导致ZnO/silicone白漆光学性能退化。

His abstract expressionism fine arts formation is transformed to mixed installation style.

周跃潮的抽象表现主义绘画形式，多年来演变成混合装置手法。

In fact, however the outside world undergoes changes, in the inside of human, there always remains an admiration of heroes, an aspiration for moral return. What Yin does just suits for such internal needs, his paintings are imbued with moral aestheticism and power, and stimulate life to release overwhelming energy, jumping outwards from the abysm of nothingness.

可以说，无论外部世界经历着怎样的变迁，在人们的内心深处，总是存留着一份对于英雄的崇拜，对于道德回归的向往，尹朝阳正好契合了这种内在需要，他的绘画具有道德的美感和力度，同时激发着生命释放出巨大的能量，从空洞的深渊里进行向外的一跃。

Our calculation shows that qa decreasing with the simulationtime can accelerate the convergence significantly,which is somehow similar tointroducing different temperatures for visiting and acceptance probability.

为了增加收敛速率，让原来固定不动的qa随计算机时间作线性下降，对粒子数N＝12，51的Thomson问题的测试表明我们的改进效果是很明显的。qa随计算机时间作线性下降类似于对接收几率引入了单独的温度，这个温度不同于跃迁温度。

The appearance of stress peaks due to the material instability as the strain increases above acritical value is detailed.

详细考察了阶跃应变中由于材料不稳定性造成应变增加时出现的应力峰值。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。