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rb
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     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
     Determinations of ~(87)Sr/~(86)Sr Ratio and Rb, Sr Contents on the GSJ Rock Reference Samples
     日本岩石标准样品的~(87)Sr/~(86)Sr比值和、锶含量的测定
短句来源
     A new hydrated rubidium heptaborate Rb_2B_7O_9(OH)_5 was synthesized by solvothermal reaction.
     ~3,Z=4。 Rb_2B_7O_9(OH)_5分子由一个新型的[B_7O_9(OH)_5]~(2-)和两个离子构成。
短句来源
     Separation of 2 mg Rb from the same amount of Cs has taken place successfully in 0.2NHCl with the help of an exchange column of 0.6cm diameter and 15.5cm length by using 0.25N NH4NO3-0.2NHCl and 3.78N NH4NO3 as an eluant for Rubidium and Caesium under the condition of an exhausting flow of 0.17ml/min.
     3.在0.2NHCi中,使用直径为0.6cm,高15.5cm的交换柱,0.17毫升/分的流速和0.25N NH_4NO_3-0.2NHCl、3.78N NH_4NO_3作为和铯的洗脱剂,成功地分离了各为2毫克的和铯。
短句来源
     They are high-silica (SiO2> 71%), peraluminous (A/NKC> 1.0) and rich in incompatible elements (Rb, Zr, U, W and Sn) and have weak Ce (δCe = 0.68-0.82) and strong Eu (δEu = 0.01-0.38) negative anomalies.
     它们具有高硅(SiO_2>71%)、过铝质(AINKC>1.0)、富不相容元素(、锆、铀、钨、锡)、弱的铈(δCe=0.68-0.82)和强的铕(δEu=0.01-0.38)负异常;
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  “rb”译为未确定词的双语例句
     Protective effects of Panax notoginsenoside Rb_1 and Rg_1 preconditioning on angiotensin Ⅱ induced hypertrophied neonatal rat myocytes against hypoxia-reoxygenation injury and effect of Panax notoginsenoside Rg_1 on thansduction from BMSCs to cardi
     参三七皂甙Rb_1、Rg_1预适应对AngⅡ致肥厚心肌细胞H/R损伤的保护作用及Rg_1对5-AZ诱导大鼠骨髓基质细胞向心肌细胞转化的影响
短句来源
     Clinical Significance of the Rb and Rb2/130 Gene in Non-Small Cell Lung Cancer
     Rb及其相关基因Rb2/130在非小细胞肺癌中的变化及其临床意义
短句来源
     A Study on the Mutation Analysis of Rb1 Gene and the Screening of Differential Proteins in Retinoblastoma
     视网膜母细胞瘤Rb1基因突变的检测及血清中差异性标志蛋白的筛选
短句来源
     Studies on the Signal Transduction Pathway of Cardiac Hypertrophy Induced by Prostaglandin F_(2α) and the Antihypertrophic Effects and Mechanisms of Ginsenoside Rb1 in Vivo and in Vitro
     PGF_(2α)诱导心肌肥厚信号通路研究及人参皂甙Rb1的作用
短句来源
     Expression of Tumor Suppressor Gene Product Rb Protein in Breast Cancer and Its Clinical Significance
     抑癌基因产物Rb蛋白在乳腺癌中的表达及其意义
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  相似匹配句对
     Discussion for RB functions
     RB功能探讨
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     Rb, 0.18;
     Rb,0.18;
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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 spectrochemical method for the determination of Rb~+ in sea water has been described In this method, Rb~+ is precipitated by Na_3Co(NO_2)_6. The precipitate is dissolved in acid, and mixed with potassium sulphate and indium chloride. Strips of Whatman No. 2. filter paper are dipped into the solution, dried, and subjected to an A. C, electric arc, Rb 4201. 8 and In 4101.8 are chosen as an homologous pair. Iu the range of 1-16 micrograms RbCl per millilitre, Rb may be determined quantitatively,...

A spectrochemical method for the determination of Rb~+ in sea water has been described In this method, Rb~+ is precipitated by Na_3Co(NO_2)_6. The precipitate is dissolved in acid, and mixed with potassium sulphate and indium chloride. Strips of Whatman No. 2. filter paper are dipped into the solution, dried, and subjected to an A. C, electric arc, Rb 4201. 8 and In 4101.8 are chosen as an homologous pair. Iu the range of 1-16 micrograms RbCl per millilitre, Rb may be determined quantitatively, with an average error of ±6%.

用结亚硝酸钠沉澱海水中的铷(浓度约0.1 P.P.m.),沉澱经酸溶解后,用纸条引进交流电弧中,选用Rb 4201,8-In 4101,8线对,用光谱三标准试样法进行测定,氯化铷含量范围为1—16r/ml,误差±6%。

A simple method to measure and analyse the factors affecting the maximum frequency of oscillation of transistors is described. From the maximum frequencies of oscillation measured with certain external series resistances connected in the base and collector circuits, the frequency of zero db current gain fT, base resistance rb, collector capacitance Cc, and also the intrinsic characteristic frequency fTd of the transistor can be deduced. The method of analysis is also discussed in the case when the collector...

A simple method to measure and analyse the factors affecting the maximum frequency of oscillation of transistors is described. From the maximum frequencies of oscillation measured with certain external series resistances connected in the base and collector circuits, the frequency of zero db current gain fT, base resistance rb, collector capacitance Cc, and also the intrinsic characteristic frequency fTd of the transistor can be deduced. The method of analysis is also discussed in the case when the collector conductance introduced by base width modulation plays an important role in limiting the maximum frequency of oscillation of the transistor. The connection between the maximum frequency of oscillation of drift transistor and its external parameters is discussed finally. It is concluded that when proper corrections are made for drift transistors, not only fTd, rb, and Cc, but also the magnitude of drift field in the base region of drift transistors can be deduced.

本文讨论了晶体管最高振荡频率有关因素的一种测量分析方法。利用在基极和集电极迴路中串入外加串联电阻后测量最高振荡频率的变动,可以同时获得晶体管共发射极短路电流放大零增益频率f_T、基极电阻γ_b、集电极电容C_c以及本征的特性频率f_(Td)。讨论了当基极层厚度调制作用所致的集电极电导起作用时的分析方法。最后分析了漂移晶体管最高振荡频率与晶体管外部参数的关系,结果说明,上述方法在考虑了适应于漂移晶体管的修正步骤后,除同样能得到f_(Td)、γ_b、C_c等有关参数外,还可以分析得出漂移晶体管基极层中的漂移电场强度。

 
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