遠場區 的英文怎麼說
中文拼音 [yuǎnchǎngqū]
遠場區
英文
far field region-
Based on analysis of geologic foundation record about pingzhuang basin, a lot of sino - foreign geothermal geology record and investigation of field geology, measuring of ground temperature in person and geo - chemical analysis of ascension spring, gushing water of fault, the fact that the anomaly of geothermal gradient of pingzhuang basin, which is in region of low geothermal gradient, is caused by redistribution of conduction - oriented geothermal heat flow which is result from upheaval and depression of basin foundation bed is pointed out. after the field of ground temperature is simulated under the background of conduction - oriented geothermal heat flow by means of ansys, the characteristic of ground temperature distribution of top surface of basin foundation bed ( yixian team ) is revealed. the sound condition of transmissibility fault and feeding water source, which are imperative in formation of the low - medium temperature geothermal system of convective type, is possessed in pingzhuang basin
通過對平莊盆地基礎地質資料、國內外大量地熱地質資料的分析和野外地質調查、礦井實測地溫以及上升泉、斷層涌水的地球化學分析等工作基礎上,指出地處低地溫梯度背景區的平莊盆地地溫梯度異常是由於盆地基底隆起和坳陷引起傳導型大地熱流再分配所致;運用州sys數值模擬了大地熱流向地表傳導背景下的盆地地溫場,從而揭示了盆地基底(義縣組)頂界面地溫分佈特徵;闡明了盆地具有形成中低溫對流型地熱系統所必需的導水斷裂、補給水源等的良好條件,中低溫對流型地熱系統是地熱勘查的主要對象;圈定了平莊盆地北部朝陽溝?駱駝營子地熱勘查遠景區。A moderate earthquake measuring 5. 0 on the richter scale rocked a remote area of north - east afghanistan today
今天一場里氏5級地震襲擊了阿富汗東北部邊遠地區。On the other hand, the electric field and intensity distributions of the he11 mode in the hollow fiber are calculated by using the exact solutions of maxwell equations based on the vector model, and the diffracted near - and far - field distributions of the he11 - mode output beam under the fresnel approximation are studies. we derive an analytical expression on the far - field distribution of the he n - mode output beam in free space and discuss its applicable condition. we also analyze and compare the differences between the he11 - and lp01 - mode output beams, and find that the near - field distribution of the lpoi - mode output beam is a gaussian - like one, but the near - field distribution of the he11 - mode output beam is a doughnut - like one, whereas the far - field distribution of both the lp01 - and he11 - mode output beams are a doughnut one
此外,我們把中空光纖中lp _ ( 01 )模(標量模型)和he _ ( 11 )模(矢量模型)的場分佈以及它們各自的輸出光束的近場與遠場分佈進行了比較,發現兩種模式的輸出光束在近場分佈有很大的區別, lp _ ( 01 )模輸出光束在近場是一個高斯分佈,而he _ ( 11 )模輸出光束在近場是一個中空光束,在遠場兩種模式的輸出光束分佈是基本一致的,這正是由於在中空光纖中採用了弱波導近似以後所引起的誤差。High country men ? ? ? take to the back country because they can make a better “ do ” of it thanon a mixed farm down - country
山區牧民隱居在邊遠地區,因為他們在那兒要比在平原的混合農場上更容易成功。The most urgent and important thing for the kodak health imaging in china is that how to make a channel - design decisions to maintain the growth of analog product at 20 % and meet the target of the digital product in 2003. in the analysis, base on the analysis of the background of the company, the market forecast, the needs of the distributors, the customers, the author put forward several channel proposals. and then the author analyses the proposals and decide the best channel to achieve the goal : the equipment distributors and the film distributors to develop the big and middle hospitals together, the equipment distributors and the medicine company or other small hospitals distributors to develop small hospitals together
在案例分析中,作者對柯達公司的背景及現狀進行了分析,對市場前景進行了預測,並對分銷商、醫院的需求以及醫院病人的最終需求進行分析,再對各個中間商進行優劣分析,確定出幾個分銷渠道備選方案,並對其逐一進行分析,最後確定最佳的分銷渠道方案:即由設備分銷商與膠片分銷商共同開發大中型醫院,設備分銷商與當地醫藥公司或醫院固定分銷商共同開發偏遠地區小型醫院市場。In order to verify the simulation field, the ultrasonic wave field radiating by a planar transducer was measured by small ball. by comparing the simulation field with the measured field, it is found that mgb is accurate in the far - field and most near - field region
為了驗證聲場模擬的可靠性,利用小球法測量了直探頭的水中輻射聲場,將試驗聲場和模擬聲場比較,發現多元高斯聲束模型在遠場區和大部分近場區都是有效的。The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system
本文從麥克斯韋旋度方程出發,建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程,詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置;推導了mur一階和二階邊界條件在圓柱坐標下的差分格式;給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場變換技術;最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場,並分析了天線的一些參數的變化對天線輸入阻抗的影響,得出了一些有用的結論。In order to validate the feasibility of the novel algorithm, ultrawide band pulse wave is used as incident wave. computational domains are limited by absorbing boundary condition. the transformation technique from near zone to far zone is used when the sampling spot is outside of the computational domains
時域成像技術以超寬帶脈沖源作為入射波源,用吸收邊界條件來界定計算域,而當采樣點遠離計算區域時,需要通過近?遠場的轉換技術把近場等效面上的信息轉換到遠場,本文採用簡單而實用的柱面波外推法作為近?遠場的轉換方法,收到了較好的效果。Beginning with the features of regional geophysical and geochemical fields in bazinao - zhanggongshan area, combinied with the available data of regional basic geology, this paper has put forward five i or ii grade potential au, sn enrichment zones on the basis of geophysical and geochemical metallogenic conditions of regional strata, magmatic rocks and structures
摘要從八字腦彰公山地區的區域地球物理場、區域地球化學場特徵分析入手,結合區內已有區域基礎地質資料,研究了區域地層、巖漿巖、構造的地球物理地球化學成礦條件,提出了5個金、錫礦i 、級資源富集遠景區。A distant field interference of non - single - core light beams is analysed in a transparent liquid or solid when the bubble is irradiated with laser, a formula on optical path length difference is derived, interference regions and causes of interference rings thick inside and thin outside are analysed, the diameter of bubble can be measured by method of interference, the size of bubble and refraction index of gas inside the bubble can be measured in the depths of medium
摘要對透明液體、固體中氣泡在激光照射下產生的一種非單心光束干涉進行了遠場分析,得到了程差公式,分析了干涉的區域、圓環狀干涉條紋內密外疏的原因,通過干涉的方法可以測量氣泡的直徑,能夠用於介質深處氣泡尺寸及泡內氣體折射率的測量。In chapter two, using the hydrodynamical equations for electrons and maxwell equation and through complicated calculation, we finally obtain a set of equations which describe the non - steady and nonlinear interactions between plasma and field in the wake region of a moving body in space
第二章是從描述電子的磁流體方程和麥克斯韋方程出發,通過計算,最後得到了一組在考慮非靜態極限下描述空間飛行器遠尾區內等離子體與場之間的非穩態非線性相互作用耦合方程。As a revolution in communications, economic globalization is both an austere challenge and an unprecedented development opportunity to ethnic cultures in china ' s outlying areas ; certain features of these cultures may become their development advantages under the trend of economic globalization
經濟全球化是一場傳播革命,這對邊遠地區民族文化是嚴峻的挑戰,也是前所未有的發展機遇;而這些文化所具有的某些特質,有可能形成其在全球化趨勢下的發展優勢。This allows greater flexibility in airline scheduling around peak arrival and departure times and increases the flight capacity of the airport
新機場有完善的道路和鐵路網路,通往市區以至較遠地區,交通十分方便。The solving steps are as follows : the field is divided into three regions by the cylindrical surface of the finite - length cylinder and the location of the delta - coils. because " the surface current source is placed at the interface, the non - homogenous restricted equation on the magnetic vector potential is transformed into the homogenous helmholtz equation. by using the method of separation of variables to solve equation and according to the interface conditions and the condition at infinity to determine the unknown constants, the expressions for the magnetic vector potential of the three regions are solved out
在求解過程中,假定放置式圓柱線圈是由無窮多個對稱圓環線圈密饒而成,首先求解含有有限長磁芯的通電對稱圓環線圈的電磁場:以有限長圓柱磁芯的側面和圓環線圈所在圓柱面為分界面將場域劃分為三個小區域,由於場源放置在內邊界面上,使得關于矢量磁位的非齊次約束方程轉化成齊次亥姆霍茲方程,利用分離變量法求解,根據分界面鄭州大學碩十研究生畢業論文摘要條件以及無限遠條件確定待定常數,從而得到各場區矢量磁位的表達式。Some small - scale photovoltaic and wind systems have been installed in remote areas to generate nominal electrical power for lighting and on - site data recording equipment
在較偏遠的區域亦有安裝幾個規模較小型的光伏及風力發電系統,用作生產小量電力,以供照明及操作現場數據資料記錄等設備使用。The airport s second runway opened to scheduled services on may 26, 1999
新機場有完善的道路和鐵路網路,通往市區以至較遠地區,交通十分方便。Ned grew up on a farm in a remote area of the country
內德在該國一個偏遠地區的農場里長大。The radiation pattern in the near and far field of each frequency component of the spectrum of current pulse on a transmission line
傳輸線上脈波電流頻譜中各頻率成份在遠近場區中場型之比較。It helps to develop infrastructure, as small airfields are set up in smaller and remoter cities, allowing for more efficient point - to - point transport
它幫助開發基礎設施,例如在小片土地及邊遠地區建立小機場,也使更有效的點對點運輸成為可能。But in some sma11er cities or remote areas, ddn 1s not very popu1ar because the insta11at ion and p1acement requi rements of ddn equipments iflcrease the user ' s costs
但是在中小城市及偏遠地區,由於ddn網組網方式對設備、場地的要求增加了用戶成本,所以ddn網的普及並不理想。分享友人