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rb
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    Parameters Optimization of High Performance Rb Frequency Standards and Study of Laser-pumped Rb Frequency Standards
    高稳原子频标的参数优化及激光抽运原子频标研究
短句来源
    FINE-STRUCTURE TRANSITION CROSS SECTIONS IN COLLISIONS OF Rb(5P) WITH MOLECULES
    (5P)原子与分子碰撞精细结构转移截面
短句来源
    Fine-structure transition cross-sections in 7~2D states of Rb induced in collisions with 5 ~2S_(1/2) state atoms
    与(5~2S_(1/2))原子碰撞产生的7~2D态精细结构转移截面
短句来源
    A Microwave Slow Wave Structure in ~(87)Rb Atomic Frequency Standard
    原子频标中的微波慢波结构
短句来源
    STUDY OF THE EFFECTS OF THE LIGHT INTENSITY AND TEMPERATURE ON THE FREQUENCY OF THE Rb MASER
    激射器频率的光强和温度效应研究
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    A new family of ferroelectric materials with composition A_2BMO_3F_3(A,B=K,Rb,Cs,forand M=Mo,W)
    铁电材料的新族:A_2BMO_3F_3■和M=Mo、W时,A、B=K、Rb、Cs)
短句来源
    REDUCTION OF LIGHT SHIFT IN Rb~(87) FREQUENCY STANDARD USING PULSE SAMPLING OPTICAL DETECTION METHOD
    用脉冲取样光检测方法减小Rb~(87)频标的光频移
短句来源
    STUDY OF IONIC CONDUCTANCE OF FAST IONIC CONDUCTOR Rb_4Cu_(16)I_7Cl_(13) UNDER HYDROSTATIC PRESSURE
    流体静压力下快离子导体Rb_4Cu_(16)I_7Cl_(13)离子电导的研究
短句来源
    Transient coherent effect of two-photo resonant excitation of a high excitation state of Rb atoms
    双光子共振激发Rb原子高激发态的瞬态相干效应
短句来源
    THE NUTATION AND RELAXATION ASSOCIATED WITH THE HFS 0-0 TRANSITION OF THE Rb~(87) GROUND STATE
    Rb~(87)原子基态超精细0—0跃迁的章动和弛豫现象
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  rb
The samples were characterized by XRD, BET, DTA-TG, UV-Vis, and their photocatalytic properties were evaluated with two model pollutants, methylene blue (MB) and rhodamine B (RB), at room temperature.
      
For three tested samples, under UV illumination CCT01 has the highest activity for MB photocatalytic degradation, while in the case of RB, CCT02 is the most active photocatalyst.
      
Under visible light illumination, CCT005 has the highest activity for both MB and RB photocatalytic degradation.
      
Seven pore water samples were analyzed for their anion (Cl-, SO42-, Br-, I-) contents, cation (Na, K, Ca, Mg) contents and trace element (Li, B, Sr, Ba, Rb, Mn) contents.
      
However, elements of Fe, Co, Zn, Ni and Rb may catalyze the organic matter maturation.
      
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The general feature of the Stark effect of the alkali atoms, the linear effect observed by Ny and Choong for the lines near the series limit of Cs and Rb, the decomposition of the m2S-n2D lines of Na into n-2 equidistant components, and the appearence of m2S-n2S series in a polarization are discussed on the basis of the perturbation theory.

本文於金硷属原子Stark效应之主要现象,及严锺二氏观察得在电场中Cs及Rb线系限附近之线之 移动与电场所成之直线关系,m~2S—n~2S系线在σ偏极面之出现,及严翁二氏视察得Na之3~2S—n~2D线之分为n—2线等现象,从量子力学之微扰理论,加以讨论及解释。

A new method for the determination of the parameter in the pseudopotential of the simplified Heine-Abarenkov model is proposed. In the present method the values of the parameter γc in the pseudopotential and the correction coefficient II for the average value of electron-ion interaction energy are determined from the experimental data of the bulk modulus and the lattice constant of the crystal at 0 K and 0 kbar. The equations of state for eleven simple metals (Li, Na, K, Rb, Cs, Ca, Al, Mg, Zn, Si and...

A new method for the determination of the parameter in the pseudopotential of the simplified Heine-Abarenkov model is proposed. In the present method the values of the parameter γc in the pseudopotential and the correction coefficient II for the average value of electron-ion interaction energy are determined from the experimental data of the bulk modulus and the lattice constant of the crystal at 0 K and 0 kbar. The equations of state for eleven simple metals (Li, Na, K, Rb, Cs, Ca, Al, Mg, Zn, Si and Ge) are calculated by means of this model potential and the second order perturbation theory. The calculated pressure-volume relations at 293K are compared with the experimental data. The agreement for all metals is fairly good except Zn for which the discrepancy between the different experimental data is relatively large.

本文提出了一种确定简化的Heine-Abarenkov模型赝势参数的新方法,使用零温、零压下晶体的体积模量和晶格常数的实验值来确定赝势参数r_c以及电子-离子平均相互作用能的修正系数H.用这种模型势和二阶微扰理论计算了十一种简单金属的状态方程。在293K计算出的压力-体积关系与实验数据进行了比较。除了Zn在不同实验数据之间本身就偏离较大外,理论与实验的符合都比较好。

The crystal structure and the atomic parameters of Li2K(IO3)3 and Li2NH4(IO3)3 have been determined by means of the X-ray powder diffraction method. The Li2K(IO3)3 and Li2NH4(IO3)3 are isomorphic with Li2Rb(IO3)3. The unit cell is monoclinic. The space group is P21/α. There are four formula units per unit cell. Lattice parameters are α= 11.198 A, b? = 11.046 A, c = 8.254 A, β= 111.53° and α =11.327 A, b = 11.078 A, c = 8.341 A,β = 111.87° respectively. The relation between formation of Li2M(IO3)3 compounds...

The crystal structure and the atomic parameters of Li2K(IO3)3 and Li2NH4(IO3)3 have been determined by means of the X-ray powder diffraction method. The Li2K(IO3)3 and Li2NH4(IO3)3 are isomorphic with Li2Rb(IO3)3. The unit cell is monoclinic. The space group is P21/α. There are four formula units per unit cell. Lattice parameters are α= 11.198 A, b? = 11.046 A, c = 8.254 A, β= 111.53° and α =11.327 A, b = 11.078 A, c = 8.341 A,β = 111.87° respectively. The relation between formation of Li2M(IO3)3 compounds and Mionic radius has been discussed.

本文用X射线粉末法测定了Li_2K(IO_3)_3与Li_2NH_4(IO_3)_3的晶体结构和原子参数。发现Li_3K(IO_3)_3,Li_2NH_4(IO_3)_3与Li_2Rb(IO_3)_3同晶型,属单斜晶系,空间群为P2_1/α,每个单胞含有四个化合式量。室温的点阵常数分别为α=11.198A,b=11.046A,c=8.254A,β=111.53°,及α=11.327A,b=11.078A,c=8.341A,β=111.87°。讨论了二元化合物的形成与离子半径的关系。

 
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