electron density造句
例句与造句
- The results show that the higher is electron density distribution , the effect is more evident . so the gradient effect must be included to measure higher density plasma in experiment
结果表明，在等离子体电子密度分布较高区域，梯度效应明显，指出在实验上测量高密度等离子体密度时必须考虑梯度效应的影响。 - The technology renovation project " application of frequency sweep microwave interferometer method to the measurement of electron densities in the wake of hypervelocity projectiles " is the research work of this thesis
具体要求是将所研制的扫频式微波干涉仪应用于某气动物理靶中对等离子体尾迹进行电子密度的测量。 - According to the fringe shift of the interferograms , electron density and implosion velocity can be obtained . in the early period of plasma imploding ， the averaged electron density is ,
在箍缩早期平均电子密度为，运动速度为；聚焦附近，等离子体的平均电子密度约为，运动速度，最小箍缩半径0 . 49mm ；崩溃阶段，等离子体的崩溃速度为。 - At the same time , the paper give out the investigation of x - ray interferometry in diagnostics of the electron density of laser produced plasma , and derived a modified term for wkbj solutions . at last , we proved these by numerical simulation
接着，本文给出了x射线激光干涉法在激光等离子体电子密度诊断中的理论研究，给出了对原有干涉法理论修正，并用数值计算中加以了验证。 - The output spot - size of our non - flowing tea co2 laser is quite large , only slightly smaller than the section of the excited media , this agrees with the calculated spatial distributions of the initial electron density for pre - ionization well
由我们的非流动型teaco _ 2激光器获得的输出光斑相当大，仅比激活区截面略小，这与理论计算的预电离初始电子密度空间分布规律有较好的一致性。 - It's difficult to find electron density in a sentence. 用electron density造句挺难的
- A co2 laser with the optimized resonator is made and to be proved by experiments . this dissertation focus on the following problems : the kinetics process of the cvl and the co2 laser , the rate equations for the laser level population , electron temperature and electron density
本文的重点是：阐述清楚铜蒸汽激光和二氧化碳激光的动力学过程，定量描述激光能级的粒子数速率方程、电子温度和电子密度等速率方程 - To analysis the principle of degradation and destruction , a reasonable relationship between the electrostatic potential and 1 - v characteristic parameters is raised ; a computation model for electron trap effect is originally proposed , which leads to a conception of critical trap electron density
本文首次建立了晶界势垒高度与伏安特性参数之间的关系，提出了陷阱效应在冲击老化过程的作用模型，引入了“临界陷阱电荷密度”的概念。 - The laser beam spot evolution and electron density in the guiding range are evaluated with the burn pattern and the measured conductivity . the above results will be useful in ultrashort laser pulse amplification and future research in ultrashort intense laser propagation in plasmas and ionizing gases
以上研究结果对于超短脉冲激光放大技术研究以及超短超强脉冲激光在低密度等离子体和空气中长距离传输和聚焦研究等具有重要的实用参考价值。 - Abstract : this paper describes the thermal effects of a coaxial rf - excitedco2 laser ， based on the balance equations of electron density and energy ， current continuity equation ， and heat conduction equation . depende ncies of the spatial distributions of gas temperature on some discharge parameters arediscussed
文摘:通过求解放电等离子体中的带电粒子密度和能量的平衡方程、电流连续性方程以及热传导方程，研究了同轴射频（ rf ）激励co2激光器中放电混合气体的温度效应，分析了有关放电参数对温度分布的影响。 - Secretic granules in b cell are fairly big , cores are various . there is fairly big gap between the core and the limiting membrane ; the center of secretic granules in a cell exist compact core and there is no gap between the core and the limiting membrane ; secretic granules in d cell are too much , electron density of granules is lower , and there is no gap between the core and the limiting membrane , what ' s more , fairly big chondriosome can be seen in the cell
B细胞的分泌颗王晓丽尼罗罗非鱼胰岛显微和亚显微结构的研究13粒较大，芯的形态多样，电子密度差异大，芯与界膜之间常有较大的空隙； a细胞分泌颗粒形态不规则，芯的大小不等，界膜与芯之间无空隙； d细胞分泌颗粒较多，芯的电子密度较低，界膜与芯之间无空隙，此外，胞质内可见较大的线粒体。 - We then discuss the vibrational - rotational level transitions and the population rate equations for the laser . in addition , electron temperature , electron density and the mixtured gas temperature in the laser plasma are investigated in details . the third part is with regard to the optimal designs and the experiments of the lasers
在二氧化碳激光动力学机理的研究中，比较详细地讨论了二氧化碳激光动力学过程，给出了激光振动-转动能级跃迁及其速率方程、激光等离子体电子密度和电子温度，以及混合气体的气体温度 - This technique can measure the profiles of meteorological fields of the neutral atmosphere and the electron densities of the ionosphere with high precision and high vertical resolutions . it can operate all - weather with long - term stabilities and global coverage . the global - distributed occultation data will have a huge promotion on the numerical weather prediction , climate and space weather researches
该技术可测量自地面到约800km高空的中性大气气象场和电离层电子密度剖面,具有全天候、长期稳定、高精度和高垂直分辨率等特点;该技术提供全球分布的资料,将对数值天气预报、气候研究和空间环境研究起极大的推动作用,在气象、空间、天文以及国防领域具有广泛的应用前景。 - Numerical simulations were done to show the distortion of the wavefront and the interference pattern under several kinds of typical plasma density distributions . the ray path in plasma was calculated by the numerical solution of the vector equation of light ray , when the plasma density was closing to the critical electron density of the laser frequency . through the simulations , the factors that influence the measurement were found out under different density distributions and shapes of plasma
在此基础上，采用数值模拟的方法，计算了在几种典型的等离子体密度分布下，激光波面的变化和产生的干涉图样；并用光线矢量微分方程的数值解法计算了当等离子体密度接近光频临界电子密度时，光线在等离子体中的传播路径，从中掌握了在不同的等离子体密度和形状下，进行干涉测量所应估计到的因素。 - Several influence factors to result plasma drift in hainan were analyzed . in this paper the characteristics of ionospheric parameters variation were analyzed systematically and some new results in storm - time such as seasonal behaviors were obtained ; it is the first time to investigate the ionospheric drift behavior in hainan and some new results was obtained , the relationships between each two plasma drift velocity components in storm time in hainan were found and the electric filed variation in hainan ionosphere also was obtained ; the results also show that there are big differences of the ionosphere parameters bo and bl obtained from the data with that obtained from the iri - 2001 applied for hainan ; a new phenomena was found during a strong magnetic storm , that a layer with very strong electron density and density grad was found during the recovery phase of the storm , its horizontal scale is beyond 100km and temporal scale is about 2 hours , this phenomena repeated 3 times continuously . a type of negative disturbance in high and low latitude but positive disturbance in east - asia also has been found
本文较为系统地给出了海南地区电离层的参数变化特征，特别是得到了一些暴时与以往不同的季节特性；第一次给出了海南地区的电离层等离子体漂移特征，发现等离子体漂移暴时扰动在三个方向上有内在的联系，得到了电场变化曲线；研究结果还表明海南电离层的半厚指数和形状参数等与国际参考电离层iri - 2001存在很大差别；通过对强磁扰动事件期间的参数变化特性分析发现，在磁暴恢复相期间海南地区电离层底部存在一个电子密度非常大的高密度区，高密度区底部电子密度梯度随高度急剧增加，该区域的水平尺度可达100公里以上时间尺度约为2小时，连续出现过三次，这是一个在海南从来未发现的新现象；研究还发现了暴时东亚地区电离层扰动会出现高低纬负相而中纬正相的现象。 - Starting from the theory of two photoionization , we simplified the model of the ultraviolet light source , derived the equation for the spatial distributions of the initial electron density between the main electrodes , and then gave a simple method to homegenize the spatial distribution of the initial electron density between the main electrodes
本文从光离化的双光子吸收这一理论出发，简化紫外光源模型后，导出了主电极间初始电子密度的空间分布规律并给出了使其空间分布均匀化的简单方法。