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加速器
相关语句
  accelerator
    MAGNETICALLY SWITCHED INDUCTION LINEAR ACCELERATOR
    磁控线性感应加速器
短句来源
    Marx Generator of Intense Pulsed Electron Beam Accelerator
    强流脉冲电子束加速器用Marx发生器
短句来源
    For simulating space environmental radiation a 2×1.7 MV tandem accelerator was used. GaAs/Ge solar cells were irradiated using 2 MeV C ions with the fluence from 3.1×109 to 6.9×1012 cm-2. Both I-V characteristics and spectral response were measured before and after irradiation.
    利用2×1.7 MV串列静电加速器提供的碳(C)离子束模拟空间环境辐射,对空间GaAs/Ge太阳电池用注量为3.1×109—6.9×1012 cm-2的2 MeV C离子进行辐照。
短句来源
    CONCEPTUAL RESEARCH ON REACTOR CORE PHYSICS FOR ACCELERATOR DRIVEN SUB CRITICAL REACTOR
    加速器驱动次临界堆堆芯物理概念研究
短句来源
    Neutronics Study of Accelerator driven Sub critical Fast Breeding Reactor
    加速器驱动的次临界快增殖堆中子学研究
短句来源
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  accelerators
    Key Problems of High Power High Precision DC Power Supply for Accelerators
    加速器用大功率高精度稳流系统几个关键问题
短句来源
  “加速器”译为未确定词的双语例句
    Test research of hydro-accelerators model at Ertan Hydropower station
    二滩水电站水流加速器模型试验研究
短句来源
    In the experimental study of autoaccelerator the current measured by the coil consists with the result measured by another method.
    在自加速器实验中,由外积分罗氏圈所测得的电流与用其它方法测量的结果相一致。
短句来源
    These types of quadrupole are used at CYCIAE 30 cyclotron and HI 13 tandem transportation lines.
    该结构的四极透镜已用于CYCIAE-30回旋加速器和HI-13串列加速器束流输运线之中
短句来源
    Further more, for 42 kV operation voltage of all 120 switches in LTD and the gas pressure of 0.19 MPa, the probability of no misfire incidents is not less than 90%, and the corresponding dynamic discharging delay and jitter time of the switch is about 170 ns and 20 ns, respectively.
    结果均表明,对于工作中、后期的开关,当气压为0.19MPa时,在42kV运行电压下,加速器上120只气体开关不发生自放电的概率大于90%,与实际运行情况相符,此时开关的动态放电时延为170ns,抖动小于20ns。
短句来源
    With the embedded remote controll system,the time-resolved OTR measurement has been implemented successfully.
    利用嵌入式方法,通过计算机控制系统对时间分辨测量系统实现实时的远程控制,实现了直线感应加速器中时间分辨测量。
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  accelerator
The conceptual study on the accelerator driven system (ADS) that lasted for about five years ended in 1999 in China.
      
China's accelerator-driven sub-critical system (ADS) sub-critical experimental assembly-Venus-1 and the preliminary experiment is presented.
      
Radiocarbon dating of the pollen concentrate from late Pleistocene syngenetic ice wedges was carried out using accelerator mass spectrometry (AMS) in Seyakha and Bizon sections.
      
Sterilization of Mail by Means of an Electron Beam Accelerator
      
The structure of the front of an arc in a magnetohydrodynamic accelerator
      
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  accelerators
The molten globule is recognized by a class of molecules called chaperones which act as accelerators of protein folding.
      
Kinetic model of the electron plasma component in plasma accelerators with closed drift
      
A procedure is suggested of measurement (without perturbing the discharge) of the thrust of ion-plasma jet accelerators, which is suitable for any types of Hall engines with arbitrary geometry of the discharge channel.
      
The concept of multiturn accelerators is developed in view of thermal loads in structural elements and in the zone of sliding electric contact.
      
Their basic advantages and disadvantages are assessed in comparison with ordinary single-channel accelerators.
      
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This paper gives a detail illustration of a modulator which has an output of 10MW pulse peak power, 75KV peak voltage and 3μs puIse width with the repetition rate of 300pps, ±0.25% amplitude drift between pulses and ±0.5% top deviation in a pulse. The measures employed in getting the above-mentioned performances, the designing methods and the experimental results are also presented.

本文介绍了20 Mev医用电子直线加速器所用输出峰功率为10MW,脉冲峰压为75KV,脉宽为3μS的调制器,要求脉间稳定度为±0.25%,脉内不平度为±0.5%。文章介绍了达到这些指标采取的措施,设计方法及实验结果。

High magnetic fields, as well as low temperatures and high pressu-res, are important tools for the study of matter. They are used in fundamentaland applied research in various fields: solid state physics, characterization ofsemiconductors and superconductors, biology, physical chemistry, production andstorage of energy, particle physics, etc… This paper is focused mainly on the production of laboratory high magnetic fields excluding the big coils used for the accelerators, tokomaks or storage rings.After a short...

High magnetic fields, as well as low temperatures and high pressu-res, are important tools for the study of matter. They are used in fundamentaland applied research in various fields: solid state physics, characterization ofsemiconductors and superconductors, biology, physical chemistry, production andstorage of energy, particle physics, etc… This paper is focused mainly on the production of laboratory high magnetic fields excluding the big coils used for the accelerators, tokomaks or storage rings.After a short historical introduction the three means (resistive coils, superconductingcoils, hybrid systems) used at present to obtain high magnetic fields are examined.Two main types of resistive coils can be distinguished: the bitter and polyhelixcoils. The coils with a constant current-density (solenoids or pancakes) are hardlyused any longer and are not discussed here. The main formulas relevent to bitter coils are explained in detail and a fewtypical values of the important parameters are quoted. Then the polyhelix coilsare presented. There is a discussion on the advantages and drawbacks of the twotypes and on their respective fields of application. The superconducting coils can also be divided into two categories: the smalllaboratory coils of common dimensions and the big coils of approximately one tonor even more. The main problems associated with their production are examinedand some famous examples are quoted. A hybrid system is a combination of both types of coils, resistive and super-conducting, which now allows the attainment of the highest continuous. fields, thatis to say 30 T in 50 mm with a power of approximately 10 MW. The best performing operational systems in the world are indicated and thereis a discussion on the problems arising from their design and construction. Possiblefuture developments are also discussed.

强磁场是研究材料的重要手段,被用来进行各种基础研究和应用研究,如:固体物理、半导体和超导体的特性、生物学、物理化学、能量的产生和贮存、粒子物理等……本文着重阑述实验室强磁场的产生,不包括应用于加速器、托克马克或贮能环中的庞大线圈。介绍目前正使用三种方式(正常导体线圈、超导线圈及混合型系统)来获得试验用的强磁场。正常导体线圈中重点介绍了有关毕特型线圈的主要公式,并引用了一些重要参数的典型值。对多螺旋线圈,也进行了叙述。同时对超导线圈研究了有关的主要问题,对复合系统获得高连续磁场,也进行了详尽的论述,最后介绍了世界上已完成的最好的运转中的系统。

This paper describes the character of palldium and nickle leak forhydrogen.Experimental results show that the working temperature ofnickle is 2~3 times higher than palldium under the same condition andthe stability of leaking hydrogen of the former is better than that of thelatter.In oder to raise the stability of palldium leak,the higher workingtemperature is necessary.In case of having a bit of water vapour inhydrogen to be purified,the leak capability of both will fall off greatlyand become unstable.When...

This paper describes the character of palldium and nickle leak forhydrogen.Experimental results show that the working temperature ofnickle is 2~3 times higher than palldium under the same condition andthe stability of leaking hydrogen of the former is better than that of thelatter.In oder to raise the stability of palldium leak,the higher workingtemperature is necessary.In case of having a bit of water vapour inhydrogen to be purified,the leak capability of both will fall off greatlyand become unstable.When oxidizing zone appears on the surface of thepalldium or nickle,the leak capability of both will fall off,too.Inthis case,the surface oxide Can be eliminated by heating it at 500℃and 900℃ in hydrogen for palldium and nickle respectively.The palld-ium leak,when used for a long time,will go to ageing,The attempt torecover and raise the leak capability of aged palldium leak by theheat-treatment will meet with unsatisfactory result.The report also discusses some questions on making use of palldiumleak in the accelarator and ion source experiments.

本文是关于钯和镍管泄氢性能的实验研究报告。结果表明:在相同条件下,镍比钯的工作温度要高2~3倍,但前者比后者泄氢的稳定性好。为了提高钯泄氢的稳定性,适当选用较高的工作温度是必要的。待纯化的氢气中含有微量水蒸汽时,可引起两者泄氢能力的严重下降,并出现不稳定。当钯和镍表面有氧化层生成时,亦可使泄氢能力下降,在这种情况下,可以采用将钯和镍放在氢气中分别用500℃和1000℃的高温加热法加以取除。对于经过长期使用而老化的钯管,用热处理方法试图恢复和提高其泄氢能力不会取得满意的效果。报告还讨论了钯泄漏器在加速器和离子源经实验中使用时应注意的问题。

 
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