近程增益 的英文怎麼說

中文拼音 [jìnchéngzēngyì]
近程增益 英文
near-area gain
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  • 益 : Ⅰ名詞1 （好處） benefit; profit; advantage 2 （姓氏） a surname Ⅱ形容詞（有益的） beneficialⅢ動詞...
  • 近程 : short range近程彈道導彈 [軍事] short range ballistic missile; 近程導彈 [航空] short range missile...
  1. This thesis was divided into eight chapters, and the main results and innovations obtained here can be summarized as follows : ( 1 ) the physics model of tsrs in frequency conversion crystals has been built up firstly. based on quantum - mechanical viewpoints and the following physical processes and parameters : the two - photo interaction of light with matter, paraxial diffraction of stokes, langevin noise sources, reflection at the faces and the edges of crystals, gain coefficient, beam aperture, pulse width and fluence of 3, the physics model of tsrs in kdp and kdp crystals acting as high - fluence frequency convector and the paraxial operator maxwell - bloch - langevin equations have been built up

    全文共分八章，取得的主要成果及創新點如下： （ 1 ）首次建立了諧波轉換晶體的tsrs物理模型本文根據量子力學原理，在考慮如下物理過程和參量的基礎上：光與物質的雙光子相互作用； stokes光的傍軸衍射； langevin （郎茲萬）噪聲源；晶體表面反射和端面反射；增益系數、光束口徑、脈寬和三倍頻光能量密度，推導出高通量激光在kdp和kd ~ * p諧波轉換晶體中的tsrs物理模型和空間上的近軸算符maxwell - bloch - langevin方程組。
  2. The approach of obtaining the guidance coefficients can be utilized in the situations in which more than four coefficients are hired for guidance to enhance the guidance performance. in addition, more precise earth model, which is non - spherical and will circle around its body axis, can be considered, and this will lead to more true results

    最後，本文對進一步的工作提出了建議，認為可以考慮用四維以上的制導參數確定反饋增益系數以改善其制導性能，另外，可以進一步考慮地球旋轉時影響飛船再入段縱程的因素，使得擬合結果更接近實際情況。
  3. Since 1976 it has been made great achievements which has conducted water more than 100 billion m3 and has been an important project of heilongjiang province. but recently the channel has been seriously freezing - melting eroded and sand of cliff edge has been deposited along the channel, which resulted to highten the channel bottom, increase width of the channel and reduce horse road. what all above have affected to apply safely channel so it is necessary to repair comprehensive

    自1976年建成以來，已累計引水100多億立方米，取得了巨大的經濟效益，成為黑龍江省西部關繫到國計民生的重點工程，但近年來渠道破壞嚴重，凍融侵蝕強烈，邊壁剝蝕下來的泥沙經渠道內水流搬運沿程發生淤積，導致渠底抬高，渠寬增加，馬道縮小，已經嚴重影響到渠道的安全運用，必須進行綜合治理。
  4. The improvements in the iaga contained adding strengthen operator, improving evaluation index of premature, etc. multi - phase homing project, making use of the flight properties of parafoil system in gliding and turning, was simple in control and facile in practice. based on frenet frame, the linear time - variable error equations of parafoil system were built

    基於frenet坐標系推導和建立了翼傘系統線性時不變的誤差方程，並運用「投影點」的思想來獲得frenet坐標系下偏差量的解析近似表達式，從而設計了用於翼傘系統航跡跟蹤的傳統pd控制器和增益調節型模糊pd控制器。
  5. In recent years, with the developing of urbanization in our country, the number of urban housing demolition increases rapidly, and the relating conflicts are getting visible day by day. and the administrative cases about destruction and moving of houses have increased year by year ; the administrative dispute in destruction and moving of houses is the focus of these conflicts

    近年來，隨著我國城市化發展進程的不斷加快，城市房屋拆遷數量迅速增加，由此引發的拆遷矛盾日益凸顯，拆遷行政案件也逐年增多，而矛盾的焦點所在即是拆遷行政爭議。
  6. ( 6 ) under the same conditions of the personnel and machinery and materials, that using value engineering into the mining technology of the rock - fill material gave rise to the direct economic performance of 5, 02 million, but the cost of the value engineering activity being used is only 14 thousand, that is to say the investment of y 1 has gained beneficial result of 359

    （ 6 ）價值工程應用於水城水庫大壩堆石料開采工藝，在不增加人員、機械、材料物資的情況下，產生直接經濟效益502 . 38萬元，用於價值工程活動的費用是1 . 4萬元，取得了1元收益近359元的投資效益。
  7. The profile of arbitrary shaped groove is approximated by a series of rectangular steps and the " hot " dispersion equation of the coaxial arbitrary - shaped - groove slow - wave structure is derived by the self - consistent theory

    摘要用階梯近似的方法分析任意槽形加載的圓波導慢波系統中的場，採用自洽場理論，得到了任意槽形周期加載圓波導慢波系統在小信號條件下的「熱」色散方程，並對結構參數對小信號增益的影響情況進行了研究。
  8. With the fast development of large span bridge and high - rise buildings, the bearing capacity and the length of piles are increasing, and the analysis and design principle of piles under inclined loads has been become a problem to be solved in civil engineering

    隨著我國近年來大跨徑橋梁及高層建築的迅速發展，基樁的承載能力及樁長日益增大，傾斜荷載下基樁的受力分析和設計理論已成為目前土木工程界亟待解決的重要問題之一。
  9. Under the macroscopic background of cities ’ rapid civilization and vigorous development of automobile industry, the rapid increase of private cars brings much trouble to the traffic of urban residential areas, the most three major of them are : 1. free circulation problem. 2

    在我國城市化進程加速、人民生活水平日益提高、汽車產業蓬勃發展的宏觀背景下，由於私人小汽車數量的迅速增加及人民出行目的的多樣性給城市居住區交通帶來了諸多新問題，近年來逐漸引起了學界的廣泛關注。
  10. Based on the nonlinear paraxial equation and b - t theory, a differential equation, which describes the small - scale self - focusing in gain ( loss ) media has been derived. the change rule of the maximal gain frequency, cutoff frequency and integral exponential gain have been analyzed approximately

    我們首先從非線性近軸波方程出發，基於b - t理論的思想，在考慮了介質的增益（損耗）特性的情況下，推導得出了小尺度自聚焦所滿足的微分方程，並通過近似方法分析了最大增長頻率、截止空間頻率及積分指數增益等的變化規律。
  11. Under the circumstance of general stagnancy of the state - owned enterprise, not associating with foreign company, nor coming into market, triangle group has developed itself from little to big, week to strong by accumulating by itself and rolling development. now it has become an area - crossing, multi - industry large scale state - owned company which engages in tyre manufacturing, refined chemical, electrical device and machinery manufacturing, project installation, third - industry service from previous little enterprise which annual output is less than 10 million rmb. especially in the last decade, its profit has been growing by 30 % each year

    三角集團能夠在國企大面積不景氣，自身未合資，也未上市的情況下，從小到大，從弱到強，依靠自我積累，滾動發展，由一家產值不足千萬的小企業，迅速發展成為以輪胎生產經營為主導，兼營精細化工、機電製造、工程安裝、三產服務的跨地區、跨行業的多功能大型國有企業，特別是近十年來經濟效益以每年30的效益遞增，企業綜合實力及經濟效益連續三年排國內同行業首位，工業總產值達到36億多元，世界同行業排名第12位。
  12. The text choose fenjin countryside of changchun as the typical district, choose rs and gis as the technological platform, utilize serial statistical data of land use from 1990 to 2002, remote sensing image and actual census data, adopt arc and statistical analysis method to analyze the change of land use structure in the process of urbanization, achieve the pace, range, trend and shift matrix of land use change ; at the same time analyzing economy, social and ecological benefit. the result shows : the agricultural area is reduced year by year, construction area is increased gradually, the social economic benefits are obviously improved, but the ecological benefits of the land drop to some extent. the urbanization process is developing quickly but it sacrifices the environments

    本文選擇長春市寬城區奮進鄉為典型區，以rs和gis為技術平臺，利用1990 - 2002年的土地利用系列統計資料、遙感影像解譯數據以及實際調查數據，採用arc方法和統計分析等方法對城市化進程中城市近郊的土地利用結構變化進行分析，獲得了土地利用變化的速度、幅度、趨勢及轉移矩陣;同時將同一時段奮進鄉的經濟、社會、生態效益的變化與土地利用變化進行對比分析，結果表明:農用地面積逐年減少，建設用地面積逐漸增多，社會經濟效益明顯提高，但土地的生態效益卻有所下降。
  13. In this thesis, we used the q - switched nd : yag laser pulse focused by lens to pump the cr ~ ( 4 + ) : mg _ 2sio _ 4 crystal, with the pump laser pulse duration and energy of 30ns and 50 mj separately, and got the laser pulse with center wavelength, pulse duration and energy of 1. 22 m, 8. 2 ns and 10 mj on the best work condition. on the base of zhangguowei s approximation about gain - switching and the parameter of cr ~ ( 4 + ) : mg _ 2sio _ 4 crystal, we calculated the time characteristics of cr ~ ( 4 + ) : mg _ 2sio _ 4 laser pulse with rate equation by numerical method, obtained the conclusion that the laser pulse duration is only related to the pump energy and cavity length : the larger the pump energy is, the narrower the pulse duration is ; the longer the cavity is, the wider the

    本論文採用調qnd : yag脈沖激光通過透鏡聚焦后縱向抽運cr ~ （ 4 + ） : mg _ 2sio _ 4晶體，抽運光脈沖寬度為30ns 、能量為50mj ，在較佳工作條件下得到了中心波長為1 . 22 m 、脈寬為8 . 2ns 、能量為10mj的激光脈沖;並在張國威分析增益開關時間特性的近似法基礎上，結合實際的cr ~ （ 4 + ） : mg _ 2sio _ 4激光器的相關參數，從速率方程出發，用數值計算的方法更為精確的模擬了cr ~ （ 4 + ） : mg _ 2sio _ 4激光器輸出激光脈沖的時間特性，得出了激光脈寬只與抽運能量、腔長有關的結論，即抽運能量愈大，脈寬越窄;腔長越長，脈寬則愈寬。
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