The good characteristics of the deflection system of electron gun can be obtained by optimizing the velocity and the location of emitting electron beam and by the aclinic emission of the electron beam, that can be achieved by making the end of the anode and the middle part of the cathode level.

研究結(jié)果表明：電子槍陽極板端點與陰極燈絲中心點保持水平可滿足電子水平出射亚洲一区精品视频在线观看；非均勻分布的磁場對e型電子槍中電子束具有良好的聚焦作用www.fxjy888.com；所設(shè)計的偏轉(zhuǎn)聚焦系統(tǒng)在電子束流為50~100 mA時日韩髙清无码专区AV，束斑小于3 mm欧洲熟女另类。

A time domain differential equation model is established by using the axisymmetrical form of the Maxwell's equations,and the finite element time domain method is applied to solve the model.

使用麥克斯韋方程組的軸對稱形式建立時域微分方程數(shù)學(xué)模型色视频操暴力，應(yīng)用時域有限元法求解一级特黄看av片网址，給出了數(shù)值算例，模擬了在不同缺陷參數(shù)下涂有電介質(zhì)的導(dǎo)體對入射脈沖太赫茲波的響應(yīng)美女裸体在线免费视频一区二区，并歸納了響應(yīng)在空間上和時間上的變化規(guī)律黄视频WWW。

It was the turn next of the other new arrival, Domoraud, to get in the action when, seizing on a flicked header from Matt Pattison, he strode through on the Woking left to test the Lewes keeper with a left-footed strike. On the quarter hour mark Danny Bunce tried an ambitious effort from 30 yards, the ball passing a foot or so over the bar. A minute later a good move involving Domoraud and Lambu ended in a scramble in the box. The ball reared up but wouldn't come down quickly enough to allow Gez Sole to get the ball on target.

接下來輪到了另一個新加盟的隊員，多莫勞德接馬特-帕蒂森的頭球傳球在左路起左腳射門被路易斯隊門將化解日本在线观看视频网站。15分鐘時丹尼-邦斯有一次30米外的勁射一级啪啪啪免费视频，球稍稍高出橫梁。1分鐘后多莫勞德和朗布在禁區(qū)內(nèi)的配合制造了威脅欧美一级a卡片免费观看，但球下墜速度不夠久久99con，朱塞佩-索勒沒能射中目標(biāo)。

In addition, analytic expression of the waist spot size and working distance of output Gaussian beam were derived, and the influence of coreless fiber and GRIN fiber's length upon fiber-lens parameter was discussed by numerical simulation results.

推導(dǎo)了出射高斯光束的束腰半徑和工作距離的解析表達式中国特黄强奸A片，進而對該光纖透鏡做了數(shù)值模擬XXXX白人性与XXXX黑人，討論了無芯光纖和GRIN多模光纖的長度對光纖透鏡參數(shù)的影響。

TEC part affected Gaussian beam waist radius,Coreless part worked on the space between beam waist and thin lens,and GRIN part acted as thin lens,in which focal length was determined by fiber index distribution parameter g.

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When the Sun is in the right position or mostly hidden by thick clouds, these thinner clouds significantly diffract sunlight in a nearly coherent manner, with different colors being deflected by different amounts.

當(dāng)太陽位于右方或隱藏在厚云層后66夜色入口，這些薄薄的云層以幾乎連貫的方式對陽光進行衍射黑白xxxxx，不同的顏色折射出不同的數(shù)量。

The parameters of Clough-Penzien spectrum related to incident direction, site conditions, intensity, and epicentral distance, were given.

本文還從工程抗震設(shè)計的實用角度出發(fā)国产精品推拿一区二区三，給出了基于Clough-Penzien譜的與地震波入射方向99国产精品视频、場地條件、地震烈度和震中距有關(guān)的平穩(wěn)譜參數(shù)取值女人被爽到呻吟的网站。

The invention adopts the technical proposal that the nucleation and process of growth of the molecular sieve are controlled properly in the synthetic process of the ZSM-5 molecular sieve material for producing the Magadiite/ZSM-5 intergrowth material, wherein the proportion of intergrown phases is adjustable, and the synthesized Magadiite/ZSM-5 intergrowth material adopts the compositions including the following mole relation: nSiO2:Al2O3, where n is between 50 and 1000 in the formula, and the method is characterized in that the Magadiite/ZSM-5 intergrowth material has two intergrown phases and an XRD diffraction pattern thereof has the d-space maximum value at the lengths of 15.73+-0.1, 11.14+-0.1, 9.97+-0.1, 7.74+-0.1, 5.14+-0.1, 3.86+-0.05, 3.66+-0.05, 3.45+-0.05, 3.30+-0.05 and 3.14+-0.1 angstroms, thereby solving the problems properly.

本發(fā)明通過采用在ZSM-5分子篩材料合成過程中欧美三级手机在线看，控制好分子篩的成核和生長過程，制備出了一種Magadiite/ZSM-5共生材料日本强伦姧人妻一区二区，其中共生物相比例可調(diào)，合成的Magadiite/ZSM-5共生材料采用包括以下摩爾關(guān)系的組成：nSiO2∶Al2O3亚洲激情国产一区精品，式中n＝50～1000国产精品久久久，其特征在于所述Magadiite/ZSM-5共生材料具有兩種共生物相，其XRD衍射圖譜在15.73±0.1人人干人人操在线，11.14±0.1色哟一区二区在线看，9.97±0.1，7.74±0.1，5.14±0.1欧美日韩性爱网络，3.86±0.05亚洲978eee，3.66±0.05，3.45±0.0599视屏在线，3.30±0.05欧美最新视频，3.14±0.1埃處有d-間距最大值的技術(shù)方案，較好地解決了上述問題国产精华Av在线导航网站。

Through the dynamic simulation, a new rf operation mode for heterostructure intervalley transferred electron devices is given ,where the width of higher valley zone and the electric field in Gunn zone are modulated by the rf device voltage .

動態(tài)模擬給出了器件的新射頻工作模式：上能谷電子區(qū)的寬度調(diào)制和低場耿氏區(qū)電場的上下浮動欧美第一页激情视频。

The propagation modes in the lenslike medium , including the spot size, field distribution pattern and their propagation constant,are obtained by solving the Helmholtz equation in the cylindrical coordinate.

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