球面天線 的英文怎麼說

中文拼音 [qiúmiàntiānxiàn]
球面天線 英文
spherical antenna
  • 球 : 名詞1 （以半圓的直徑為軸 使半圓旋轉一周而成的立體; 由中心到表面各點距離都相等的立體） sphere; glo...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 球面 : spherical surface; sphere球面艙壁 spherical bulkhead; 球面車床 spherical turning lathe; 球面反射...
  1. 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。
  2. Above this 34 - m antenna, called dss - 13, is one of those large dishes of the deep space network in goldstone, california and is primarily used for receiving echoes reflected from asteroids when they are beamed by groundbased radio signals

    圖上這座口徑34米的天線，編號dss - 13 ，隸屬美國加州的深空網路。當天文學家從地面向小行星發射無線電波時，小行星會把部分電波反射回地球，並由dss - 13所接收。
  3. Above ) this 34 - m antenna, called dss - 13, is one of those large dishes of the deep space network in goldstone, california and is primarily used for receiving echoes reflected from asteroids when they are beamed by groundbased radio signals

    （圖上）這座口徑34米的天線，編號dss - 13 ，隸屬美國加州的深空網路。當天文學家從地面向小行星發射無線電波時，小行星會把部分電波反射回地球，並由dss - 13所接收。
  4. Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented

    許多行星（如木衛三，水星，地球，木星和土星）和恆星（如太陽）具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動，磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線，即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色，並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型
  5. Design and simulation of elliptical reflector antenna

    橢球反射面聚焦天線的設計和模擬
  6. The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering

    本文從星載雷達的星地幾何關系入手，舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型，研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法，並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體，完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析，最後完成雷達回波信號的模擬。
  7. The poynting vector that represent the flow of electromagnetic power density on a sphere from a linear dipole antenna is approximated by the summation of the field of segmented line current as hertz dipoles

    以赫芝偶極之電磁場合成任意長度偶極天線在球面上電磁功率密度流之時變玻因亭向量。
  8. However, the moon s path is tilted about 5 to the ecliptic, making the alignment of the sun, the earth and the moon in a straight line a relatively rare case. only when the sun and the moon are close enough to the nodes crossing points of the ecliptic and the moon s paths during full moon, a lunar eclipse can occur

    要注意的是，由於太陽和月球在天空的軌道稱為黃道和白道並不在同一個平面上，而是有約5度的交角，所以只有太陽和月球分別位於黃道和白道的兩個交點附近，才有機會連成一條直線，產生月食。
  9. Report back in the exhibit schedule : march 8, 2006 - 10 days am09 : march 10, 2006 - 12 days remove time : march 12, 2006 exhibitors range : car, car, motorcycle, light truck bearings, railway bearings, magnetic bearing spindle ; aviation aerospace marine bearings, rocket and satellite bearings ; industrial robot bearings, machining center and machine spindle bearings, textile machine bearings, motor bearings, and farm machinery bearings, paper machine bearings, bearings press, bearing mill, metallurgical mining, petrochemical machinery bearings, bearings sporting goods, marine rig bearing ; bearings, bearings gyroscope, high - precision bearings, high - speed bearings, linear motion bearings, needle roller bearings, thrust bearings, ultra - low - temperature bearings, special bearings, ceramic ball bearings, spherical with trophies bearing miniature bearings, quiet motor bearings, ball bearings, roller bearings, lubricating bearings corrosion resistant bearings, bearing joints ; bearing ring blank refinement, precision ball and roller crown, with nails cage

    撤展時間： 2006年03月12日參展范圍：轎車汽車摩托車輕型車軸承鐵路軸承磁懸浮軸承電主軸航空航天航海軸承火箭及人造衛星軸承工業機器人軸承加工中心及機床主軸軸承紡織機軸承電機軸承農機軸承造紙機軸承印刷機軸承軋機軸承冶金礦山石油化工機械軸承體育用品軸承海洋鉆機軸承組合軸承陀螺儀軸承高精軸承高速軸承直線運動軸承滾針軸承推力軸承超低溫軸承特種專用軸承陶瓷球軸承帶座外球面軸承微型軸承靜音電機軸承球軸承滾子軸承潤滑軸承耐腐蝕軸承關節軸承軸承套圈精化毛坯精密鋼球凸度滾子帶釘保持架軸承滾動體等軸承部件。
  10. " the project aims to build a fixed spherical reflective antenna of 500 metres aperture at a bowl - shaped valley of some 500 metres wide in a mountainous area in guizhou and this reflective antenna will be named as " soft antenna "

    。這研究項目計劃在貴州山區中的一個開口500多米的碗狀山谷中，依附地形建造一口徑為500米的球面反射面固定天線，名為柔性的天線。
  11. The simulation program has been implemented to simulate the procedure of hxmt detecting x - ray source. the simulation result has been used to analyze the overlay region in celestial sphere, the variation of photon current intensity and the variation of the angle between sun and orbit, which demonstrate the reason why to select a 550 km height and 43o inclination low earth orbit as hxmt ' s orbit

    利用模擬程序，實現了模擬一個正在預研的天文衛星? ?硬x射線調制望遠鏡hxmt觀測x射線源的過程，分析了天球覆蓋、 hxmt接收的光子流強度的變化和太陽軌道面夾角的變化，說明了選取高度為550km ，傾角43o的近地圓軌道作為hxmt的運行軌道是合理的選擇。
  12. In its 5 - day journey, shenzhou vi will pass over many places on the earth, including hong kong. however, it has to be over our sky during dusk or dawn for us to see it by the sunlight it reflected

    神舟六號在它五天的航程里，會經過全球不少地區，香港也是其中之一，但我們要看見神舟六號，它必需于黃昏或清晨時分通過本港附近上空，以便向地面反射太陽光線。
  13. The earth rotates on its axis, so that a fixed aerial upon the surface of the earth will scan a complete circle of the sky in the course of a day

    地球繞軸自轉，因此地球表面上的一根固定天線在一天中能將整個天空掃描一圈。
  14. Besides the advanced manufacturing technology and theory, a series of correlative technologies are required to the implement of networked manufacturing, especially the technologies of distributed computing, information integration and artificial intelligent etc. aiming at their limitations, the paper reconstructed the key supporting technologies employing the last network technologies and protocols, and established a new architecture of networked manufacturing. finally, the demonstrational researches are conducted with " flexible design and manufacturing system of key parts in large - scale antenna " as prototype. the distributed computing platform available of networked manufacturing is constructed with the distributed object technologies such as corba, dcom, rm1 etc, but those rpc modules bring obstacles to the development of global manufacturing due to their limitations

    網路化製造系統是個分佈、異構、鬆散耦合的智能系統，除了先進製造技術與理念本身，網路化製造的具體實現與實施還需要一系列相關技術的支撐，特別是分散式計算、製造信息集成、人工智慧等，論文正是針對當前網路化製造中上述關鍵支撐技術的不足與局限，運用下一代internet核心規范webservices及其相關技術如xml 、 soap 、 wsdl 、 uddi等，提出了面向全球的網路化製造全新分散式計算解決方案（ global - orienteddistributedcomputing ， godc ） ；構造了基於xml - schema的製造產品數據描述語言（ pdmlbased - xml - schema ） ，給出了express xml及steppart21 xml的映射規則，並對基於xml step pdm網路化製造信息集成方案進行了研究；同時運用webservices 、 xml等先進技術與規范對網路化製造的multi - agent模型、表示、通訊、調度等進行了研究與重構；最後，以「大型天線關鍵零件網路化製造」為原型進行了應用研究。
  15. Due to greenhouse gases, the atmosphere absorbs more infrared energy than it re - radiates to space, resulting in a net warming of the earth - atmosphere system and of surface temperature. this is the natural greenhouse effect

    但受到溫室氣體的影響，大氣層吸收紅外線輻射的份量多過它釋放出到太空外，這使地球表面溫度上升，此過程可稱為天然的溫室效應。
  16. Due to the rotation of the earth, celestial objects rise in the east and set in the west

    由於地球自轉，造成天體由東面地平線升起，西面地平線落下的現象。
  17. What immediately draws your eye at the hospital is the neonata intensive care unit ( nicu ) - - where up to 30 babies at a time spend their first days and weeks tangled in tubes and wires, struggling to keep warm and learning what full - term babies already know : how to breathe, suckle and swallow

    在醫院裏面首先吸引你的眼球的是nicu ，那裡每次都有超過30個嬰兒在那裡度過他們的第一天或者第一周，他們都被摻繞著試管和金屬線去保持溫暖和學習滿月嬰兒已經會的技能：怎樣去呼吸，吸乳和咀嚼。
  18. This dissertation adopts the modularization programming method to develop the spaceborne sar system design and simulation software, which obtains the windows common interface and logical integrated structure, convenient for usage, maintenance and function extension. 2. as for the earth model and orbit model, according to the properties of spaceborne sar operation, in this dissertation, we reject the sphere earth model and circle orbit model and present a novel way to solve spaceborne geometry relations between radar and target by three ellipses, and achieve the way to determine the target position by antenna pointing direction

    在地球模型和軌道模型方面，論文根據星載合成孔徑雷達工作的特點，摒棄了球地球和圓軌道的傳統模型，創新性的採用三個橢圓解決了星載雷達的星地幾何關系問題，得到了在地球橢球模型和橢圓軌道模型下由雷達天線指向確定目標坐標的方法，為星載合成孔徑雷達系統設計與模擬提供了更為精確的幾何基礎。
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