條形天線 的英文怎麼說
中文拼音 [tiáoxíngtiānxiàn]
條形天線
英文
stick antenna-
Conscious that the human organism, normally capable of sustaining an atmospheric pressure of 19 tons, when elevated to a considerable altitude in the terrestrial atmosphere suffered with arithmetical progression of intensity, according as the line of demarcation between troposphere and stratosphere was approximated, from nasal hemorrhage, impeded respiration and vertigo, when proposing this problem for solution he had conjectured as a working hypothesis which could not be proved impossible that a more adaptable and differently anatomically constructed race of beings might subsist otherwise under martian, mercurial, veneral, jovian, saturnian, neptunian or uranian sufficient and equivalent conditions, though an apogean humanity of beings created in varying forms with finite differences resulting similar to the whole and to one another would probably there as here remain inalterably and inalienably attached to vanities, to vanities of vanities and all that is vanity
人體組織通常能夠抗得住十九噸的氣壓169 ，可是一旦在地球的大氣層里上升到相當的高度，越是接近對流層與平流層的境界線，鼻孔出血吸呼困難以及眩暈，隨著算術級數就越發嚴重起來。他曉得這一點，尋求解答時就設想出這樣一個難以證明是不可能的行之有效的假定：倘若換個更富於適應性，解剖學上的構造也有所不同的種族，說不定就能在火星水星金星木星土星海王星或天王星那充足而相同的條件下生存下來。然而那個遠地點170的人類種族，盡管在構造方面與地球上的人類有著一定限度的不同之處，整個來說彼此卻有著相似的種種形態。There are not so many trees that can be used to produce line, which is thin and long, high woodiness and no " knag " allowed. line, especially its color, will greatly highlight home decoration. facing line is to paste natural plaque on line, whose most preeminent characteristic is the rich color for choice
線條是家居裝修、裝飾的妙筆，線條的色彩起著極大的修飾效果。貼皮線條是將天然木皮膠貼在線條上形成的，最大特點是具有色彩的豐富性與業主選擇的多樣性的特點，可使裝修裝飾的效果更完美更理想。Paintbrushes create lines and shapes with artistic flair
畫筆可以發揮您的藝術天賦，設計出線條和圖形。Then, pattern synthesis for sparse array antenna using genetic algorithms is researched. at last, we researched on conformal patch on the surface of cylinder and the effect of conformal antenna platform on the radiations of patches in different positions. how to get a good feeding for conformal array antenna by genetic algorithms is presented in the end
文中介紹了遺傳演算法在綜合低副瓣陣列中的應用;採用遺傳演算法給陣列天線的方向圖賦形，其結果優于同種條件下用woodward法得到的結果;同時，考察了遺傳演算法的穩定性;分析討論了遺傳演算法在綜合稀疏相控陣方向圖綜合中的應用。A new waveguide made of changing a wide wall of a rectangular waveguide to a uniform curved wall is called conformal waveguide. a kind of expression of approximate solution for domain mode of the new waveguide, including symmetric, unsymmetric arc, parabolic arch, hyperbolic arch, elliptic arch, etc., is constructed by using boundary condition of mental waveguide, variational method and boundary element method. by using the equivalence principle, an approximate calculating formula for equivalent resonant conductance of a narrow longitudinal halfwavelength slot cut in the curved wall of the unsymmetric arcrectangular waveguide is derived, and the result is shown. although this solution is approximate, it can solve the problem in designing the slotted antenna of such conformal waveguide
把矩形波導一個寬面外突成均勻曲面構成的新波導統稱為共形波導.利用金屬波導邊界條件、變分法、邊界元素法構造這種新波導中主模場的一種近似解表達式，包括曲面橫截線為對稱、非對稱圓弧，拋物線弧，雙曲線弧，橢圓弧等.然後根據等效原理，推導非對稱圓弧矩形波導曲面上窄的縱向半波長縫隙的等效諧振電導的近似計算公式，給出計算曲線.這種解雖然是近似的，但卻能解決這類共形波導縫隙天線的工程設計Thus, space - charge field in excitated photoconductor can intensity influence not only the shape of photo - electric current of pcss ' s, but also the terahertz out put of photoconducting antenna. in this paper, the forming and movement of space - charge field are simulated by means of fdtd method
觸發條件下光電導體內部電場不僅顯著的影響光電導開關產生超快電脈沖的功率、波形，而且對thz偶極天線的輻射功率也有明顯的影響。It divides the specific shapes of city space into streets, water systems, city skyline and corridors of sight lines. it also aims at the special landscape of hilly cities and analyzes their characteristics from macro and micro angles. at the same time, it explores some specific treatment principles and design methods, in hopes that it could provide useful references for the landscape constructions of china ' s hilly cities
本文主要是從城市景觀的角度，把在山地城市的景觀構成中占重要地位的線形景觀作為主要的研究對象，並根據城市空間的具體形態，將其分為街道、水系、城市天際線和視線走廊等幾個部分，針對山地城市特殊的地形條件，從宏觀、中觀、微觀等角度，分析它們各自的景觀特點，並結合大量實例探討了一些具體的處理原則和設計方法，以期對我國山地城市的景觀建設提供有益的參考。Information is collected through the use of special rotating antennae found on the two strands that form the helix and located where each strand intersects with its four ladders
通過使用在二條里發現的特別旋轉天線收集信息，二條形成螺旋狀用它的四個階梯固定在每條橫斷面上。The contrasting colors of purple in the background, bright yellow in a heart, and red and dark brown in the border around the heart add an uplifting sensation to the painting like white clouds in the middle of the sky, going against earth s gravity to enter into the boundless cosmos. the viewer feels as if he is being upheld by an invisible power to be free from the influence of naked eye observation so as to hear the subtle vibrations resonating from the flickering colors found in each brush stroke of the enlightened artist. he is able to enjoy wonderful mysteries and feel fine tuned frequencies, which are indescribable in worldly language and not arguable by the earthly mind
那些對比色：紫色的底金黃色的中心紅色棕色的邊，讓整幅畫清爽流利，像天空中的一片雲突破地球引力奔向浩瀚宇宙，觀賞的人好像得到無形力量的貫注，不再局限在凡夫的眼界，而能在那些水遇無痕的筆法布局中，用心傾聽出顏色的微細振動，從行雲流水的線條中，隱現出開悟神奇奧秘的享受，感受到那微細的高頻率波段不可說的天籟。On the contrary, his eyes wet with tears, pierre looked joyously at this bright comet, which seemed as though after flying with inconceivable swiftness through infinite space in a parabola, it had suddenly, like an arrow piercing the earth, stuck fast at one chosen spot in the black sky, and stayed there, vigorously tossing up its tail, shining and playing with its white light among the countless other twinkling stars
與之相反，皮埃爾興高采烈地睜開他那雙被淚水沾濕的眼睛，凝視著這顆明亮的彗星，它彷彿正以非言語所能形容的速度沿著一條拋物線飛過這遼闊的空間，忽然它像一枝射進土中的利箭，在黑暗的天空楔入它所選定的地方，停止不動，它使盡全力地翹起尾巴，在無數閃爍的星星之間炫耀自己的白光。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 radiation problems of microstrip antennas residing in a cavity are analyzed by the edge - based fem with perfectly matched layer ( pml ) absorbing boundary condition ( abc )
將edge七asedfem與完全匹配層吸收邊界條件相結合，分析了背腔式微帶天線和背腔式分形微帶天線的電磁輻射特性。Two or three water towers, the backs of two or three steel frames for billboards, perhaps a spire or two, and a stretch of asphalt roofing material and bricks going up in square, sharp, vertical outlines without any form or order, sprinkled with some dirty, discolored chimneys and a few washlines and crisscross lines of radio aerials
兩三座水塔，兩三個釘廣告牌的銅架，一兩座尖塔，一望相連的瀝青的屋頂材料和磚頭，形成一些四方形的、矗立的、垂直的輪廓，完全沒有什麼組織或次序，點綴著一些泥土，退色的煙突，以及幾條曬著衣服的繩索和交叉著的無線電天線。This thesis presents the theoretical analysis about the design of the tunable antennas with multilayered structure theory and microstrip antenna ' s analytical methods. and it improves three typical kinds of antennas, and uses the voltage controlled ferroelectric materials. we analyze the tuning features of the antenna by simulation under the condition of different permittivity of the ferroelectric materials, and discuss the feasibility of improvement from microstrip antenna to tunable antenna
本文結合多層介質理論及微帶天線的分析方法對可調諧天線進行理論分析，並對矩形貼片天線、圓形貼片天線、微帶振子天線三種典型的微帶天線結構進行改進，引入壓控鐵電薄膜材料，模擬分析在改變鐵電薄膜介電常數條件下天線的調諧特性，討論微帶天線改進為可調諧天線的可行性。The purple sand hand - drag base art breaks the banlance of old hitting base art and dang - base model from song dynasties to now
紫砂手拉坯工藝打破了自宋代起至今的傳統打坯鑲接成形法與模型擋坯、灌漿澆注成型法的一統天下，避免了傳統成型所留下的泥條接頭線與模型接線。However, in some districts pipe transport cannot forms a big ng supplying net, the extension in area of ng provision is limited, only can supply to the cities ( towns ) along the pipe ~ system, for the integrated factors of restriction, such as the rate of the people who use ng as their main fuel, the economic state and the extend of ng price of people ' s affording in a city ( town )
管道輸送是天然氣輸送的基本方式，實踐證明，對于大規模輸送天然氣採用管道輸送是最經濟和有效的輸送方式。但是由於輸氣干線的建設受城市氣化條件，經濟實力，用戶氣價承受能力等綜合因素的限制，使得這種輸送方式在一些特殊的地區難以形成大范圍聯網，供應范圍受到限制，只能向長輸管道沿線城鎮供氣。A vertical line is drawn to correspond with the price range for the day ， while a horizontal “ tick ” pointing to the left reveals the opening price ， and a tick to the right indicates the closing price
該圖形用一條堅線表示當天價格波動的范圍，再在堅線的左側用一條小橫線表示開盤價，在右側用一條小橫線表示收盤價。A sphere, in contrast, concentrates its beam to a line ? which is why a " line feed " antenna was originally used at arecibo
球形的則不同，它會把波束匯聚到一條線上? ?這就是為什麼阿雷西博先前使用的是「線反饋」天線。Novel tools such as traceability software, bar - codes and radio frequency identification tags and their rapid adoption throughout the food manufacturing chain will improve the efficiency of the process
整個食物製造線應迅速採用新穎的工具例如追蹤軟體，條形碼和利用天線頻率來做確認卷標，這將會使過程更為有效率。According to the characteristic of high vacuum thermal environment in low orbit, it builds the theoretical modeling of the thermal analysis of thermal distortion in optical reflector of antennas system. making use of the results reached by ansys software, it analyzes and compare the stress and distortion of reflector under the static temperature
論文建立了在軌運行空間高真空熱環境下的天線鏡面熱變形分析模型，利用有限元分析軟體ansys模擬得到的結果，分析比較了穩態溫度場條件下潛望式天線系統反射鏡面的應力及變形情況。分享友人