Firstly, some fundamental knowledge, such as the describing of laser field, the Kind of electron-atom scattering in a laser field, and so on, are introduced. Then a compution method which is called the Second-order Born approximation and is used to calculate the cross section of electron-atom scattering in a laser field, is provided.

本文首先介紹了激光場(chǎng)的描述操东北妇女视频、激光場(chǎng)中電子—原子散射的分類(lèi)等相關(guān)理論色播影院性播影院午夜私人影院，接著詳細(xì)描述了一種計(jì)算激光場(chǎng)中電子—原子散射截面的方法——二階玻恩近似理論。

The result showed that the amount of total phosphorus in the soil of farmland is the highest,while the wet grassland field with arbor shrub and grassland field and bulrush field is lower than that in farmland before rain.

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In order to solve the problem in calculating the klystron output circuit characteristic, based on field analysis and post-processing of 3D electromagnetic field simulation software ISFEL3D, a field analysis method is proposed.

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Bsed on real circumstances of TV transmitting station,the artiele presents a methodof calculation of field strength in case the radiowave is affected by ground objectsand meteorological conditions,and that of approximate calculation of field strengthIn penumbra areas,and so on,A method of calculating field strength in city is alsopresented with int...

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The full study on electric-field effects coupled with magnetic field effect and the charge carrier mobility in these materials at electric field seems to be lacking.

目前人們對(duì)巨磁阻材料中的場(chǎng)致電阻效應(yīng)產(chǎn)生的機(jī)理以及在電場(chǎng)下巨磁阻材料中的載流子遷移率的行為還缺乏充分的研究H纯肉无遮挡3d动漫在线。

Taking as research method, field work as "the special skill" of the ethnology, also no doubt is the important research method of this article. Gaining the first material through different forms of visiting, talking,investigation and so on, has made the historical materials and field work double win. The historical literature is the direct foundation of tracing the nationality source and studying with textual. The history data of local chronicle, history book, genealogy, genealogy, etc. can make field date and literature date bring out the best in each other.

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The China chronicle play materializes the confliction and collusion mass culture field, national ideology field and business field. At the same time, it affects fashion, value idea and cultural swim complexly and profoundly.

歷史劇的發(fā)展不僅反映了當(dāng)代中國(guó)政治、經(jīng)濟(jì)日韩一级片免费视频、文化的分化和沖突欧美色图亚洲色图乱伦小说，同時(shí)也對(duì)當(dāng)代中國(guó)社會(huì)的時(shí)代風(fēng)尚、價(jià)值觀念国产欧美视频图片小说区、文化潮流產(chǎn)生著復(fù)雜和深刻的影響亚洲色图欧美在线。

It is verified that a proper magnitude of linear to loop current ratio will results an omnidirectional circular polarized wave with same pattern for all transverse electromagnetic field in the far field but not in the near field or vise versa.

驗(yàn)證適當(dāng)強(qiáng)度比例之線電流與環(huán)電流可在遠(yuǎn)場(chǎng)輻射四方均勻之圓形極向波，且所有橫向電磁場(chǎng)之瞬間場(chǎng)形均相同国产巨乳无码精品中文字幕在线观看，但在近場(chǎng)則否毛片在线视频免费观看下载大全，或反之亦然。

The research indicates that the interior scattering sound field can be expressed as the summation of the interior scattering sound field of the closed shell and the external scattering sound field of these scatterers.

研究結(jié)果表明黑人α片，該內(nèi)部散射聲場(chǎng)可表示為封閉薄殼的內(nèi)部散射聲場(chǎng)和這些內(nèi)部散射體的外部散射聲場(chǎng)之和的形式国产日韩区。

How to enhance the efficiency of high order harmonic generation is an important topic in high field physics. Many ways including two color laser field, phase matched in a gas filled hollow fiber and adding a magnetic field, etc.

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