elliptical system 中文意思是什麼

elliptical system 解釋
橢圓導航系統
  • system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
  1. A regional satellite navigation system which is made up of geosynchronous satellites and synchronous satellites with elliptical orbit is proposed

    摘要提出了一種用靜止衛星和同步橢圓軌道衛星構造的區域衛星定位系統。
  2. Chapter 3 proposed a constellation scheme for a regional satellite navigation system. the constellation is consist of geosynchronous satellites and synchronous satellites with elliptical orbit

    第三章在分析了適用於構造區域衛星定位系統的衛星軌道類型后，提出了利用靜止衛星和同步橢圓軌道衛星構造星座的方案。
  3. Based on it, a new kind of helix slow - wave structure named elliptical helix slow - wave structure used in helix traveling wave tubes has been detailedly investigated. by studying the rf characteristics of this slow - wave structure, it ’ s found that higher operation frequency and interaction impedance will be obtained by increasing the eccentricity of helix or decreasing it of the shield. meanwhile, great potential of improving system bandwidth has also been found if the eccentricity of helix or shield or the two are properly choosed

    本文對近幾十年大功率行波管的研究進展進行了簡單討論，並在此基礎上研究了一種可應用於螺旋線行波管的新型的螺旋線慢波結構，即橢圓螺旋線慢波結構，通過對該螺旋線高頻特性進行詳細分析，我們初步認為，選擇適當的螺旋線和屏蔽筒離心率，可以提高系統工作頻率，增加系統耦合阻抗，並且具有改善系統帶寬的潛力。
  4. Holding system same as cylindrical screen printer, with the help of up and down cylinder, the machine can work on round, oval, elliptical and tapered containers

    承產品裝置與滾筒絲印機一至，在滾筒的上下運動下，該機器可印圓、扁、橢圓和錐形容器。
  5. Mathieu function is the base of field theory analysis in elliptical cylinder coordinate system. so, firstly, detail investigation has been given about the problem of numerical analysis of matheiu functions, based on the predecessor ' s contribution, an improved faster algorithm of numerical analysis and confirmation algorithm of matheiu functions has been presented

    Mathieu函數是橢圓柱坐標系統下場論分析的基礎，因此本文首先對mathieu函數的數值計算問題進行了詳細研究，並在前人基礎上完善並進一步改進了目前被認為較為可行的數值演算法，並提出了驗證演算法。
  6. This planet, unlike the other planets in our solar system, has an elliptical orbit and moves clockwise rather than counterclockwise

    這顆行星，不同在我們太陽系的其他行量，是橢圓形軌道，順時針方向移動，而不是逆時針。
  7. ( 1 ) on the basis of machinery system dynamics, the dynamics equations of balanced elliptical shakers excited by two - shaft self - synchronizing and by three - shaft self - synchronizing are established

    （ 1 ）根據機械繫統動力學建立了雙軸自同步平動橢圓振動篩和三軸自同步平動橢圓振動篩的動力學方程。
  8. In order to realize smooth movement of mechanical system at a low velocity, the following work investigates new types of linear ultrasonic motors and antifriction technique by superposing the motor ’ s elliptical vibrating motion at the friction interface to change frictional characteristics, produce ultrasonic lubricant effect and realize active control of friction force

    本文研究新型超聲波馬達，利用其產生於摩擦界面的橢圓軌跡超聲振動引起的潤滑效應和摩擦接觸行為的改變來減小摩擦力的大小，完成對摩擦力的主動控制，實現機械繫統的低速平滑運動。
  9. The embedment of the text proclaimed in writing in elliptical public - key encryption system is studied theoretically and a general algorithm is designed

    對橢圓公鑰密碼體制中的明文嵌入進行了理論研究，設計了一個通用的演算法。
  10. Sound system equipment. part 14 : circular and elliptical loudspeakers ; outer frame diameters and mounting dimensions

    音響系統設備.第14部分:圓形和橢圓形揚聲器.外框直徑和安裝尺寸
  11. Sound system equipment - guide for circular and elliptical loudspeakers ; outer frame diameters and mounting dimensions

    音響系統設備.第14部分:圓形和橢圓形揚聲器外框的尺寸和安裝尺寸導則
  12. The direction of arrival and time of arrival statistic for circular and elliptical vector channel model are derived, and efficient methods are give that can be used to simulate these models. the benefits of using adaptive antennas are also studied for 3g mobile radio system based on td - scdma. hi this thesis, these benefits are explained theoretically and illustrated by computer simulation

    然後用矩量法和等效網路方法分析了自適應陣列的互耦特性，建立了考慮互耦后的陣列信號接收模型，考察了計入互耦后music來波估計演算法性能，並給出了一種基於music演算法的互耦矩陣求解方法。
  13. Then, it introduce several cryptographic protocol based on elliptical curve, including diffie - hellman key switching, elgamal encryption and decryption, elgamal digital signature, ecdsa, etc. based on these, the author analyze kinds of security threat faced to 3g system and discuss the security rule and security objectives

    然後介紹了基於橢圓曲線的幾種密碼協議，包括diffie ? hellman密鑰交換， elgamal加解密， elgamal數字簽名， ecdsa等協議。在此基礎之上，分析了3g系統面臨的各種安全威脅並對系統的安全原則和安全目標進行了討論。
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