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conversion
相关语句
  变换
    MATHEMATICAL ANALYSIS OF VARACTOR'S FREQUENCY CONVERSION EFFECT
    变容二极管频率变换作用的数学分析
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    The Advances and Prospects on AC-DC Conversion Technology
    AC—DC变换技术的进展与展望
短句来源
    Wavelength Conversion Using a Light Injection DBR Laser Diode at 2.5 Gbit/s
    实现2.5 Gbit/s的波长变换
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    The Features and Application of MAX IC for DC-DC Conversion
    MAX DC-DC变换集成电路的特点及其应用
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    Research of Boost ZVT-PWM Soft Switching Conversion Technique
    升压式 ZVT-PWM 软开关变换技术研究
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  “conversion”译为未确定词的双语例句
    Tunable Wavelength Conversion Based on FWM in Semiconductor Fiber Ring Laser
    基于SFRL的FWM型可调谐全光波长转换器的研究
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    Liquid Core Optical Fiber and Measurment of Mode Conversion Coefficient with Gambling's Method
    液芯光纤及用Gambling法确定其模变换系数
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    Investigation of Single Junction Integrated Type a-Si Solar Cell with Area of 100cm~2 and Conversion Efficiency of 8.55%
    效率为8.55%的100cm~2单结集成型非晶硅太阳电池的研究
短句来源
    Measurements of refractive index profiles of proton-exchanged LiNbO_3 waveguides using TE-TM mode conversion
    Measurements of refractive index profiles of proton-exchanged LiNbO_3 waveguidesusing TE-TM mode conversion
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    How to Eliminate the Burr in D/A Conversion Out and the Circuit's Design
    D/A输出毛刺的排除与其电路实现
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  conversion
But there appeared to be species difference in arteether metabolism, highest conversion being recorded with humans followed by rats and monkeys.
      
Aldose reductase (AR) is an enzyme that catalyzes the conversion of glucose to sorbitol, which is in turn converted to fructose by sorbitol dehydrogenase.
      
The conversion of CNB could reach 99.9%, and the dechlorination of chloroaniline (CAN) was less than 1.9% when catalyzed by Pt-Sn-B/CNTs and more than 8.0% when catalyzed by common hydrogenation catalysts.
      
Results show that HY is an efficient catalyst for the acetalization and ketalization with high conversion and selectivity in mild conditions.
      
Under these conditions, the conversion and selectivity were over 50% and 97%, respectively.
      
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This paper describes a detailed analysis of conversion properties of junction transistors. A new parameter "the effective conversion transconductance" is introduced for characterizing transistor converters. The effective conversion transcon-ductance of transistor converters using a PNP transistor operated at different oscillatory conditions and at various signal frequencies are studied. Main differences between transistor converters and vacuum tube converters are compared.

本文讨论面结型晶体管变频性能的分析。提出新参数“有效变频跨导”来决定晶体管变频器的特性。研究晶体管变频器在各种振荡状况下及不同讯号频率时对有效变频跨导的影响。比较晶体管变频器与电子管变频器的主要区别。

Thin and uniform sources are always needed in β-spectroscopy. For this purpose, an apparatus of vacuum evaporation was designed, by mean of which sources such as In114, Au198 and Sm153 have been prepared. The souces of In114 were prepared respectively by the methods of drop evaporation and vacuum evaporation, and both were measured with the double focusing β-spectrometer and double lens β-spectrometer. Their internal conversion spectra were compared. The advantage of the method of vacuum evaporation is...

Thin and uniform sources are always needed in β-spectroscopy. For this purpose, an apparatus of vacuum evaporation was designed, by mean of which sources such as In114, Au198 and Sm153 have been prepared. The souces of In114 were prepared respectively by the methods of drop evaporation and vacuum evaporation, and both were measured with the double focusing β-spectrometer and double lens β-spectrometer. Their internal conversion spectra were compared. The advantage of the method of vacuum evaporation is obvious. In addition, the Au198 K-conversion line of 411.8 KeV γ-ray and Sm153 K, LⅠ, LⅡ, LⅢ convertion lines of 69.67 KeV γ-ray measured with double focusing β-spectro-meter are given.

在β谱学的研究中,经常需要薄而均匀的放射源。为此目的,我们设计了一套真空蒸发制源装置,并用它制出了In~(110),Au~(198)和Sm~(153)的放射源。为了说明问题,我们分别用液滴蒸发和真空蒸发法制备了In~(114)的放射源,用双磁镜和双聚焦β谱仪测量了它们的内转换能谱,并对它们的结果进行了比较。可以看到,真空蒸发法制备源的优点是明显的。此外,也给出了双聚焦β谱仪测量的Sm~(153)69.67千电子伏γ射线的K,L_Ⅰ,L_Ⅱ和L_Ⅲ转换电子线以及Au~(198)411.84千电子伏γ射线的K转换电子线。

This article describles that N-type indium antimonide single crystal and twin crystal involving larg grain samples (n≈1.23 × 1014-2.40 × 1015 cm-3, μe≈ 5.15 X 155 2.10 × 105 cm2/V-sec) are converted into P-type samples by heat treatment in different kinds of gases at 500℃. During this heat treatment, if the temperature rises to above the melting point, the thermal acceptors in the P-type sample disappear, and the sample is converted back to N-type. If this converted N-type sample is again heated at 500℃, it...

This article describles that N-type indium antimonide single crystal and twin crystal involving larg grain samples (n≈1.23 × 1014-2.40 × 1015 cm-3, μe≈ 5.15 X 155 2.10 × 105 cm2/V-sec) are converted into P-type samples by heat treatment in different kinds of gases at 500℃. During this heat treatment, if the temperature rises to above the melting point, the thermal acceptors in the P-type sample disappear, and the sample is converted back to N-type. If this converted N-type sample is again heated at 500℃, it will be converted to P-type once again. We have investigated this new discovered process which is related to the varying preparation conditions of indium antimonide and the varying gas ambients of the heat treatment, and we have also discussed the process of thermal conversion cycle and melting effect.

本文叙述N型InSb单晶和含有大晶粒的双晶样品(n~1.23×10~(14)—2.40×10~(15)cm~(-3),μ_e~5.15×10~5cm~2/V·sec—2.10×10~5cm~2/V·sec),在500℃下、不同气氛中进行热处理产生受主,引起热转换,而整块地变为P型样品,当继续热处理使温度达到熔点以上时,这种P型样品中的热受主消失了,而转变回到原来的N型样品;若把这种N型样品再在500℃下进行热处理,则它又整块地变为P型样品。我们对这一新发现的过程进行了一些研究,发现这种现象与材料的不同制备条件和热处理时的环境气氛不同有关,并对不同气氛下的循环热转换过程和熔化效应作了论述。 在500℃下进行热处理所引起的热受主浓度与热处理时间的关系中,发现在热处理起始的一段时间内,热受主形成速率较大;随着热处理时间的增加,热受主浓度达到一个饱和值;若再加长热处理时间,则热受主浓度开始下降,这现象与硅的热处理现象相似。 根据实验得到的新结果进行分析,认为这种热处理现象不象是外来因素的影响所引起的,而是一种原来存在于InSb中的内在因素所起的作用,推测可能是与氧和氢有关。最后我们对解释这种热处理现象的可能的机理进行...

本文叙述N型InSb单晶和含有大晶粒的双晶样品(n~1.23×10~(14)—2.40×10~(15)cm~(-3),μ_e~5.15×10~5cm~2/V·sec—2.10×10~5cm~2/V·sec),在500℃下、不同气氛中进行热处理产生受主,引起热转换,而整块地变为P型样品,当继续热处理使温度达到熔点以上时,这种P型样品中的热受主消失了,而转变回到原来的N型样品;若把这种N型样品再在500℃下进行热处理,则它又整块地变为P型样品。我们对这一新发现的过程进行了一些研究,发现这种现象与材料的不同制备条件和热处理时的环境气氛不同有关,并对不同气氛下的循环热转换过程和熔化效应作了论述。 在500℃下进行热处理所引起的热受主浓度与热处理时间的关系中,发现在热处理起始的一段时间内,热受主形成速率较大;随着热处理时间的增加,热受主浓度达到一个饱和值;若再加长热处理时间,则热受主浓度开始下降,这现象与硅的热处理现象相似。 根据实验得到的新结果进行分析,认为这种热处理现象不象是外来因素的影响所引起的,而是一种原来存在于InSb中的内在因素所起的作用,推测可能是与氧和氢有关。最后我们对解释这种热处理现象的可能的机理进行了探讨。

 
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