far plane 中文意思是什麼
far plane
解釋
遠平面-
The ground plane should extend far enough ahead of and behind the model so that no local disturbances are introduced.
地板的大小應超出模型前後足夠遠，以免引起局部擾動。 -
An arbitrary shaped line current on a horizontal plane is divided into many small line segments and approximated by hertzian diploes, then both the near and far em - field of the line curennt is approximated by the summation of the complete near and far fields of hertz dipoles
水平面上任意形狀線電流分割為許多小段之電流，每一小段之電流近似為赫芝偶極，則在三度空間任意座標平面上無論遠近之電磁場即可以赫芝偶極之遠近完整電磁場加總合成近似之。 -
Abstract : in this paper ， a ray - optics analysis is performed to investigate the asymmetry of dual beam scanning field produced by a rotating polygon. some basic equations of dual beam scan are derived ， such as ， the position vector for the incident point ， the scalar expression for reflected ray ， scan pattern on observation plane ect. the far - field asymmetry of the scanning field has been discussed
文摘:應用幾何光學理論研究了多光束轉鏡掃描場的非對稱性，導出多光束掃描入射點位置矢量、反射線標量表達式、觀察面上的掃描軌跡方程，並研究了掃描遠場的非對稱性。 -
This research will try to resolve the distribution and controlling factors of gas layers by the study of division of substrata in bawu gas field. the main reservoir of bawu gas field are the sand layers in the formation of k1sh, k1y, k1d, k2q, sediment delta plane, delta frontier, plait delta developing distributary riverway sand, bayou sand dam, far sand dam and river sand of plait
八屋氣田主要儲層為早白堊世的沙河子組（ k _ 1sh ） 、營城組（ k _ 1y ） 、登婁庫組（ k _ 1d ）及晚白堊世的泉頭組（ k _ 2q ） ，為三角洲平原、三角洲前緣及辮狀河三角洲沉積體系，發育分流河道砂、河口砂壩、遠砂壩、辮狀河道砂等，砂層在平面上連通性差。 -
The vector - based plane - wave spectrum method ( vpws ) is improved, which can directly obtain the far field diffractive pattern depending on the output near field data in the bor fdtd meshes by use of the deduced formulas in this dissertation
改進了平面波譜傳播演算法（ vpws ） ，推導出的公式可以由borfdtd計算空間內的近場輸出數據直接計算出遠場的電磁場分佈。 -
Because the air - borne imaging system is required a far acting distance and the focal length of its optical system is long. influenced by the unsteady or moving platform mounted on plane, the change between the frames of image sequence is more. problems of image fuzziness and instability tend to be striking out, which becomes a bottleneck restricting the air - borne reconnaissance, collimation, evaluating beat effect
機載光電成像系統，由於要求作用距離遠，故其光學系統焦距長，受其載體姿態變化和振動的影響，圖像序列幀間變化過大，造成觀察者覺得模糊、不穩定，己成為制約空中偵察、瞄準、打擊效果評估等功能的瓶頸。 -
According to biot - savart law, the general expression of magnetic field distribution generated by circular current in space has been calculated in this paper, which further discusses the magnetic field in the plane, the central axis and the far space
摘要直接由畢奧薩伐爾定律的計算公式，在更為普遍的情況下，計算出了圓形線電流在全空間的磁場分佈，並進一步討論了其在中心軸線上、平面內及遠區的磁感應強度。 -
< uk > the far - field pattern in the plane of the junction consists in this case of only a single dominant lobe about 6 - 9 wine at the half - intensity point. < / uk >
< uk >沿結平面方面的運場圖形就只是半一強度點約為6 - 9的唯一主瓣。 < / uk > -
The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks, detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack, a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading. the distributions of tz are minutely studied in the forward section of the cracks. strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions
全文主要研究內容和學術貢獻如下: 1 .針對一般三維裂紋端部場應力約束準確解析的困難，對均勻拉伸載荷作用下各向同性彈性板中穿透厚度中心直裂紋、半橢圓表面裂紋和1 / 4橢圓角裂紋進行了大量詳細的全場應力三維有限元分析，首次全面分析了非穿透裂紋端部場三維影響區范圍，給出了不同形狀三維裂紋前沿離面應力約束因子tz的數值解，並結合k場平面解給出了非穿透裂紋端部應力場k - tz雙參數描述。 -
In this graph, the galactic plane is horizontal and we ignore the distances. note that the gas and dust in our galaxy not only block the stars in our galaxy, but also the galaxies far away. taking this into consideration, the distribution of the galaxies is fairly uniform
圖中中間的水平線標示出銀河系平面，銀河系的氣體塵埃除了掩蓋了背景星光，亦同時遮蔽了遙遠的星系，撇除了這個因素，我們會發覺星系在天空的分佈是頗為平均的。 -
Base on helmholtz integral equation, the incoherent scattering of plane wave from rough cone - shaped surface is derived with the far field theory and stationary phase method. and the incoherent scattering of plane wave from rough conical surface is also derived with shadowing function when the the radius of principal
最後計算並分析了入射光為= 0 . 48 m時，粗糙錐面的平面波散射特性，考察了入射波和散射波的幾何關系，偏振態以及粗糙面統計參量等對散射強度的影響。 -
Ir moving target detection and tracking under complex environment is a key technology problem in ir guidance system and ir alarm system to detect and track the point target in the far distance and the plane target in the near distance
復雜背景下紅外運動目標的檢測和跟蹤是紅外成像制導和紅外預警系統中的關鍵技術難題，它分別針對遠距離點目標和近距離面目標進行檢測、跟蹤。 -
On the far right of the screen, you can see the plane hitting the pentagon, and then a ball of flame goes up in the air
遠看錄象頻幕的右邊，你可以看到飛機撞擊五角大樓，然後一蔟火團升上天空。 -
The far east importers has just brought in a large transport plane loaded with one thousand bolts of japanese silk, and i have to go over to the airport and get a cargo inventory
遠東進口公司來了一架大運輸機，上面裝載了一千匹日本絲綢，我得去機場做一份貨物清單。 -
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。 -
The magnetic field far away from a plane current coil of any shape
任意形狀平面載流線圈在遠點處的磁場計算 -
Indirect ray method contains the following steps : the receiving plane wave field intensities on an adapted closed surface encloseing the antenna is calculated and then the radiation field of the antenna on the same closed surface is obtained from the given antenna. after using lorentz reciprocal theorem, the far field patterns with and without radome are gotten
間接射線法的分析步驟為:從參考面出發的入射平面波（經天線罩）在閉合面sa （在天線罩內且包圍天線）上的接收場為et 、 ht ，天線在sa上的發射場為ea 、 ha ，由洛侖茲互易定理可求出天線的遠區場。 -
The outcome suggest that, firstly, the change of light transmission with the continuous change of parameters is periodic ; secondly, as far as the degree of effect is concerned, the light transmission of air - spaced prisms is much more sensitive to the change of the parameters than that of the glue spaced ones ; thirdly, as to the prisms glued with the same dielectric, the effect of prisms whose optical axis parallels to the glued layer is intense than those whose optical axis parallels to the plane determines by the normal of incident face and that of the cut face
研究認為，激光偏光棱鏡的光強透射比隨各參量的連續變化都呈現出一定的周期性；各參量對空氣隙型偏光棱鏡的影響要比對膠合型棱鏡的影響大的多；同種介質膠合的棱鏡，各參量對光軸平行於切割斜面的設計類型比光軸平行於切割面的法線和入射端面的法線所組成的平面的設計類型的影響要大。 -
Far below the plane we could see the lights of london.
從飛機上俯視遠處可以看到倫敦的萬家燈火。 -
To begin with, the influence that plane scanning error has on the far field is analyzed and the upper boundary of the error is formulated. and then this paper uses the taylor series expansion to correct the probe positioning error in antenna near - field measurement
根據平面波譜理論，推導了平面掃描位置誤差對遠場的影響，給出了位置誤差上界的數學表達式，並用泰勒級數展開法對其進行了修正。
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