英语释义

• electron that is not attached to an atom or ion or molecule but is free to move under the influence of an electric field

片语

free-electron gas自由电子气

free-electron collision自由电子碰撞

free-electron maser自由电子脉塞

free-electron model自由电子模型

model free-electron自由电子模型

free-electron theory自由电子理论

free magnetic electron spectrometer无铁电子磁谱仪

collision free-electron自由电子碰撞

英汉例句

• the effects of undulator phase errors on the free electron laser small signal gain is analyzed and discussed.

  对波蕩器位相误差对自由电子激光小信号增益的影响进行了分析讨论。

• the classical behavior of a free electron in a strong laser plasma is discussed by solving the generally-covariant equation of motion for an electron.

  通过严格求解广义协变的电子运动方程，讨论了强激光等离子体中自由电子的经典行为。

• integrate circuit, the laser and the gyroradiation of relativistic free electron were three important discovers and inventions in 1958.

  1958年，电子学领域出现三个重要发现和发明：集成电路、激光和相对论自由电子的回旋辐射。

• the shanghai free electron laser (sfel) user facility currently under construction at shanghai institute of nuclear research is a broadband free electron laser (fel) facility.

  上海宽波段自由电子激光用户装置（sfel）正在中国科学院上海原子核研究所fel实验室设计建造。

• the paper studies electron nonlinear steady motion equation in free electron lasers with axial magnetic field by the perturbed appro?

  本文用扰动方法，逐级求解了带导引场圆极化自由电子激光器的电子非线性稳态运动方程。

• it is a free electron so there is no potential energy to be accounted for.

  对于自由电子,因此没有什么势能。

• a method for direct measuring the frequency of a free electron laser using ac josephson effect is presented.

  提出一种利用交流约瑟夫森效应直接测量自由电子激光频率的方法。

• frequency-resolved measurement of the emission from a eaman free electron laser under superradiation condition by a microwave grating spectrometer are presented.

  本文报道了利用微波栅摄谱仪测量在超辐射工作条件下的喇曼自由电子激光器辐射谱的初步结果。

• this property have an effect on performance of the free electron laser.

  这种摆动性质影响着自由电子激光的特性。

• results and conclusion the calculated radar diffusion section, using the free electron density of the trail as its input has higher accuracy than the two dimensional results.

  结果与结论用本方法计算的自由电子密度所求得的尾迹雷达散射截面比二维结果有较大改进；

• this paper, based on the fermi gas model, studies the energy of free electron gas in metal, discusses the highest energy, the average energy and the energy level density of free electrongas.

  本文根据费米气体模型理论，研究金属中自由电子气的能量，讨论电子的最高能量、平均能量和电子气的能级密度。

• the wave function of free electron in a strong laser plasma is obtained by solving exactly the dirac equation in a curved space-time with optical metric for the laser plasma.

  借助激光等离子体的光学度规，严格求解了弯曲时空中的狄喇克方程，得到了强激光等离子体中的自由电子波函数。

• this paper introduces a practical design of a bragg cavity that can be used in raman free electron lasers.

  本文介绍一种可用于喇曼自由电子激光器的布拉格腔实用化设计。

• shanghai broadband free electron laser(fel) user facility will be executed in three stages:start stage, earlier stage and later stage.

  上海宽波段自由电子激光用户装置将分为三个阶段实施：起步阶段、前期阶段和后期阶段。

• the photon statistics in free electron laser fields is analysed by means of llp transformation in this paper. and the perturbation solution is presented.

  借助于固体理论中的llp变换研究自由电子激光场的光子统计性质，并发展了一种微扰方法予以求解。

• it is necessary to use this kind of inex simulations in order to accurately calculated and predict the lasing performance of free electron lasers.

  基于中物院通红外自由电子激光装置，采用一种注重横向问题的整体数值模拟方法进行了计算。

• the paper studies electron nonlinear steady motion equation in free electron lasers with axial magnetic field by the perturbed appro?ch.

  本文用扰动方法，逐级求解了带导引场圆极化自由电子激光器的电子非线性稳态运动方程。

• according to this principle, a miniature, inexpensive and effective free electron laser at high frequency may be designed. it is feasible in technology.

  据此原理，可以设计小型、廉价、高效率、高频率自由电子激光器，它在技术上是可能实现的。

• the free electron gas is a kind of representative quantum fermi gas.

  金属的自由电子气是一种典型的量子费米气体.

• influence of untrapped electrons on the sideband instability of electromagnetic wig-gler free electron laser(em-fel)is analyzed in detail with single-particle theory.

  用单粒子理论分析了未被有质动力势阱捕获的电子对电磁波泵自由电子激光边带不稳定性的影响。

• presented in this paper are the results of experimental study on the magnetic-field-immersed foilless diode of a raman free electron laser.

  文章给出了用于一台喇曼自由电子激光器磁场浸没型无箔二极管工作特性的实验研究。

• the free electron gas is a kind of representative quantum fermi gas.

  金属的自由电子气是一种典型的量子费米气体。

• in the high efficiency and small signal region, we investigate theoretically the efficiency enhancement mechanism of far infrared free electron laser (fir-fel) with a reverse tapering waveguide.

  在高效率和低电流小信号范围内，理论地分析了用反向渐变波导提高远红外波导自由电子激光器（fir-fel）效率的机理。

• this paper deals with the statistical properties about two dimensional photon gas and free electron gas.

  讨论了二维光子气体和自由电子气体的统计性质.

• this article is a comprehensive report about free electron lasers (fel).

  本文是关于自由电子激光器的综合报告。

• the efficiency enhancement mechanism of far infrared free electron laser(fir fel) with a reverse tapering waveguide is theoretically investigated.

  提出使用渐变间隙的矩形波导提高远红外自由电子激光器效率的新思想。

• it is shown that an electron passing through a walking wave magnetic field can also produce spontaneous radiation, so, the walking wave magnetic field can serve as a wiggler of free electron laser.

  本文采用行波磁场作为周期性磁场，通过讨论可以看出，当电子通过这种磁场时将产生自发辐射，说明该磁场能作为自由电子激光器的摆动器。

• superconducting accelerator and photocathode injector is the first choice for high average power free electron laser study.

  超导加速器技术和光阴极技术在高平均功率自由电子激光的研究中占有重要地位。

• ride received a doctorate in astrophysics and free electron laser physics from stanford.

  莎莉在斯坦福大学获得天体物理学和自由电子激光物理的博士学位.