sodium atoms 钠原子(16) na原子(4)   钠原子      The laser beam from a pulsed tunable dye laser is tuned to the resonance line of sodium 3~2S_(1/2)-3~2P_(1/2)((?) =16961cm~(-1)) to excite the sodium atoms in a hydrogen-acetylene flame.      把脉冲可调谐染料激光器的激光调谐到钠原子3~2S_(1/2)—3~2P_(1/2)的共振激发线(ν=16961cm~(-1)),激励火焰中的钠原子。 短句来源      Ethylene molecules were excited to high vibrational states through multiphoton excitation by TEA CO_2 laser, then collided with Sodium atoms.      TEA CO_2激光将乙烯分子激发到高振动态,振动激发乙烯分子与基电子态钠原子碰撞发生振动—电子(V-E)能量转移,使钠原子处于电子激发态. 短句来源      LASER RESONANCE IONIZATION (LRI) TRANSITION AND EFFICIENCY FOR SODIUM ATOMS      钠原子激光共振电离（LRI）跃迁及其电离效率 短句来源      Model potential calculations of diamagnetic spectra of Rydberg sodium atoms      里德堡钠原子抗磁谱的模型势计算 短句来源      A new title macrocycle L and its complex [NaClO4·L]2 have been synthesized and characterized. The crystal structure of the complex shows that two L direct coordinate two sodium atoms,rcspectively,and two perchloraec μ2-O bridges make them form a sandwich dimeric structure unit.      本文合成和表征了一种新的标题大环L和它的配合物［NaClO4·L］2．配合物的晶体结构表明，两L分别与两钠原子直接配位，并通过两高氯酸根的两μ2－O桥形成了夹心型双聚结构单元． 短句来源 更多          na原子      A perturbation method is used to evaluate the energy levels and oscillator strengths of sodium atoms (m=-2,π2=+)in a strong magnetic field.      本文使用一种微扰法计算强磁场中的Na原子(m=-2,z宇称π=+)在强场混合区的能级位置和振子强度。 短句来源      Two photon excitation of the ground state sodium atoms using a cw dye laser populated the Na (5S) state in the K Na vapor mixtures.      在Na－K混合蒸汽中，利用染料激光器，将基态Na原子双光子激发到5S态。 短句来源      This paper reports the experimental observation of the higher states' fluorescence changing with laser power,which was populated through energy polling collisions between two excited sodium atoms excited to the first excited state by a CW single mode laser in sodium vapor.      报道了用连续单模激光器将Na原子共振激发至 3P态 ,观察到通过Na(3P) -Na(3P)能量积聚碰撞过程布居的高激发态荧光随激发光功率的变化关系。 短句来源      It indicates that the three silicon atoms,which are in the same trigonal plane of the most stable structure with D3h symmetry for Si5 cluster,have surplus bonding abilities. Thus,they can bond with three hydrogen,lithium,and sodium atoms and six hydrogen atoms to form four stable compounds,i.      结果表明,Si5原子簇中最稳定的具有D3h对称性的结构中,位于同一平面上的3个Si原子确实具有剩余的成键能力,可以与3个H,Li,Na原子和6个H原子形成稳定的化合物. 短句来源   “sodium atoms”译为未确定词的双语例句      LASER-ENHANCED IONIZATION SPECTROSCOPY OF SODIUM ATOMS      钠原子的激光增强电离光谱研究 短句来源      ACID EFFECT ON LASER-ENHANCED IONIZATION SIGNAL OF SODIUM ATOMS      酸对钠原子的激光增强电离信号影响的研究 短句来源      Sodium is thus sensitively detected by nonresonance fluorescence induced by saturated excitation of sodium atoms produced by the laser beam. The detection limit reached is 10~(-11) g/ml.      通过激光饱和激励感生非共振荧光光谱方法进行钠原子的灵敏检测,实际的检测限可达10~(-11)g/ml。 短句来源      REMARKS ON QUANTUM BEAT EXPERIMENT OF HIGHLY EXCITED SODIUM ATOMS      高激发态钠原子的量子拍实验的某些分析 短句来源      e. ,Si5H3,Si5H6,Si5Li3,and Si5Na3.Although the hydrogen,lithium,and sodium atoms are in the same main group,they bond with the silicon atoms of the Si5 cluster by different ways,and the additions also have various influences on the trigonal bipyramid structure of Si5.      研究还发现,虽然H,Li和Na都属同一主族,但它们与Si5原子簇中Si原子的键连方式却不同,而且它们的加入,对Si5原子簇的"三角双锥"结构也有不同的影响. 短句来源 更多        查询“sodium atoms”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   sodium atoms The replacement of potassium atoms by sodium atoms is accompanied by the contraction of the structure along the a and c axes. 例句来源       The parameter b (the direction of channels in the structure) is insensitive to the substitution of sodium atoms for potassium atoms. 例句来源       The interatomic interaction potentials derived from new precision spectroscopic data are used to calculate averaged collision cross sections of two sodium atoms. 例句来源       The concentration of sodium atoms in the 2P3/2 and 2P1/2 excited states is ～5 × 106-5 × 108 cm-3. 例句来源       The observed high-speed clouds of sodium atoms are assumed to have been formed through ionization, ion acceleration by the bidirectional electric fields of Alfvén waves in the Io-Jupiter current tube, and their neutralization. 例句来源       更多                    The crystal structure of sodium tetraselenite has a monoclinic unit cell with a=5.90A, b=4.82A, c=10.19A, β = 91°20', which contains 2 {NaH3(SeO2)2}. The space group is Gs2-Pn.The equatorial Weissenberg photograph h0l indicates that the projection of the structure onto the plane (010) has a pseudo plane group p6m and a pseudo unit cell with a' = 5.94A, b'=5.90A, r' = 119°50'. The pseudo plane group helped to fix the selenium and sodium atoms in the projection (Figure 1) and the Patterson p...             单斜晶体NaH_3(SeO_3)_2的晶胞参数为α=5.90(?),b=4.82(?),c=10.19(?),β=91°20′。晶胞中含有2{NaH_3(SeO_3)_2}。密度的计算值和观测值各为3.22_4和3.21±0.01克/厘米~3。根据系统消光,晶体结构中存在着滑移面n。最后根据全部原子的坐标值肯定晶体的空间群为C_3~2—Pn。 根据Weissenberg图hOl上各衍射点的分布情况,可为结构在(010)面上的投影引出一个a′=5.94(?),b′=5.90(?),γ′=119°50′的假六方单位,投影的假二维空间群为p6m。假六方单位的a′=1/2(c-α),b′=α如图1中所示。Patterson投影P(u,w)肯定了图1中Se和Na原子的x,z坐标,而P(v,w)给出了它们的y坐标。从这些坐标值看来,晶体中的Se和Na原子系按空间群C_(2h)~5-P2_1/n分布。依靠上述重原子的坐标值并按空间群C_2h~5计算了电子密度分布函数ρ(x,z)和ρ(y,z)。计算结果指出,晶胞中的O原子系按空间群C_3~2分布。最后按空间群C_3~2对上述电子密度分布函数逐步进行修改,使O原子有了明确的表... 文摘来源          We investigated the near resonant scattering and collision induced fluorescence of sodium atoms with doublet excited states in a weak laser field. By changing the frequency of the incident light and measuring the integral intensities of the components of the scattered light, the near resonant excitation cross-section of each sublevel was obtained as functions of the frequency detuning. Their variations are qualitatively explained by the interaction potential between the sodium atom and var...             本文研究了具有双重激发能级的钠原子系统在惰性气体碰撞微扰下对单色光的近共振散射。在不同的入射光频率下,通过对散射光各分量积分强度的测量,得出了每个能级激发截面随着偏调的变化规律,从钠原子与不同的碰撞微扰体相互作用势定性地说明了这些规律。 文摘来源          A few analytical expressions for the observables in a quantum beat experiment is derived, which can be used to describe the experimental results and to obtain the fs splitting in sodium D states. The, change of the n2D states of sodium atoms in a weak electric field is also discussed.             本文推导了一个量子拍实验中观察量的解析表式,与实验对比可得n~2D态钠原子的精细裂距,其它特征也与实验符合。同时还讨论了上述高激发态钠原子在弱电场中的能态变化特性,指出了观察此特性的可能实验方法。 文摘来源   << 更多相关文摘         相关查询: (sodium atoms sodium sodium hypochlorite na atoms sodium selenate free atoms boron atoms metal sodium sodium naphthenate metamizole sodium rydberg atoms  对查询结果不满意

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