通道復用 的英文怎麼說

中文拼音 [tōngdàofùyòng]
通道復用 英文
channel multiplexing
  • 通 : 通量詞（用於動作）
  • 道 : Ⅰ名詞（道路） road; way; route; path 2 （水流通過的途徑） channel; course 3 （方向; 方法; 道理） ...
  • 復 : Ⅰ形容詞1 （重復） repeated; double; duplicate 2 （繁復） complex; compound Ⅱ動詞1 （轉過去或轉過...
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 通道 : thoroughfare; passageway; pass; enterclose; gallery; drong; tunnel; avenue; alure; way; row; key ...
  1. The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time. in order to improve the communication quality of the shortwave that depends on the ionosphere, we should have aknowledge of the current condition of the ionosphere in real time. the backscatter sounding of high frequency can diagnose the real - time channel characters for shortwave communication or hf radar, which is great assistant to shortwave communication and hf radar

    電離層是隨機時變，各向異性，非均勻、色散的復雜介質。為了保證依賴于電離層進行的短波通信質量，必須了解電離層的實時狀態信息。高頻返回散射探測可以實時監測與短波通信或高頻天波雷達相關的天波傳播通道的狀態，對短波通信和天波雷達工作起了重要的輔助作用。
  2. Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece

    將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義
  3. Path protection and multiplex section protection

    通道保護和復用段保護
  4. 2. the design of program searching and parsing and de - mux module, which are the application software of the stb, are discussed in this dissertation. 3

    利用hi2011晶元及其提供的開發軟體包進行了有線電視數字機頂盒的應用程序開發，即節目搜索及節目提取程序的設計和解復用通道的軟體設計。
  5. According to the feature that deformation resulted from water absorption and mildew appear mainly on the rabbet surface of ccf, this paper adopts rsst to spray a special waterproof sealant on rabbet surface of ccf, so that the sealant can get into fiberboard to certain extent by means of capillarity and penetration, blockage the holes between fibers and capillary, cut up passage of water and change the properties of soakage and sorption to water in capillarity and fiber. at the same time, solidified sealant can form a compact waterproof pellicle on rabbet surface so as to prevent water and humidity from fiber ' s expansion and mildewing

    針對吸水變形、霉變主要發生在地板企口表面的特徵，採用企口表面全封閉法，在復合強化地板企口表面噴塗特殊的防水封閉劑，使其依靠毛細管作用及滲透作用進入板內一定深度，堵塞木纖維之間的空隙及毛細孔通道，截斷水分傳遞的渠道，並改變毛細孔壁及纖維的表面性質以不利於水的浸潤與吸附，同時其固化后能在企口表面形成一層緻密的憎水薄膜，防止水分、濕氣從企口侵入板內引起木纖維膨脹變形、發霉等現象。
  6. Furthermore, k + ionophore valinomycin and k + channel opener diazoxide alone induced neuronal apoptosis and caspase - 3 activation. besides, katp channel blockers tolbutamide and glybenclamide also showed neuroprotective effects and decreased caspase - 3 activation after hypoxia / reoxygenation. while the role of katp channels in neuronal apoptosis is not clear

    為進一步證實鉀通道在缺氧復氧誘導的神經元凋亡中的作用，我們採用了鉀通道開通劑100pmdiazoxide及鉀離子載體50nmvallnomycln 。
  7. By using ofdm technology, we can redu ce the baud rate with a high frequency spectrum utility factor. another advantage of this technology is that the transmission can combat the intersymbol interference ( isi ) at the receiver without complex adaptive equalizer

    Ofdm既有較高的頻譜利用率，也有效地降低了碼速率，在不使用復雜的通道均衡技術的條件下仍然可以較好地克服接收時由多徑效應帶來的碼間串擾（ isi ） 。
  8. The v was tested by yjy stress transducer with mvad card by the methods of recording the deformation in the wideness and thickness direction of the specimens during the tensile test. a stable auxetic polyolefin blend with the minimal value - 1. 4 was observed after repeated test

    採用附有mvad通道卡的yjy型片式傳感器，記錄試樣在拉伸過程中寬度和厚度方向的形變並根據泊松比的定義進行計算，反復實驗后獲得最小值為- 1 . 4的負泊松比烯烴共混體系。
  9. For digital audio encoding and decoding modules, delta - sigma modulation is introduced and audio data, preambles with accessorial data are multiplexed according to the digital audio interface standard ; for carrier wave, pll frequency synthesizer is used ; for frequency modulation, voltage control oscillator is taken ; for demodulation, pll frequency discrimination is adopted

    調制方式，並按照數字音頻介面標準對音頻數據、同步字和附加信息進行通道復用;對于載波信號，採取鎖相環頻率合成技術手段;對于頻率調制，採用壓控振蕩器;對于解調電路，採取鎖相環鑒頻電路。
  10. Wdm has promoted greatly the development of optical communications, optical net based on wdm technology will become the main transmitting flat roof in telecom net. in wdm, with increasing the channel density, a new kind of optical component, interleaver, emerges as the times require. in this paper, several main interleaving technologies are analyzed quite deeply, and mgti interleaver is investigated experimentally, one prototype device with better experiment results is achieved

    波分復用技術（ wdm ）對于光通信技術的發展起到了巨大的推動作用，以dwdm技術為核心的光傳送網將成為電信網的主要傳送平臺。在密集波分復用技術中，隨著通道復用密度的提高，一種新型光器件? ?光學梳狀濾波器（ interleaver ）應運而生。
  11. First of all, the development of the digital trunked communication system is summarized, and the technical characteristics of several prevail worldly digital trunked communication systems are compared. in view of the domestic situation, the tetra digital trunked radio communication system is chosen as the studying and developing model. with the study of control technology of softswitch, the protocol of the v + d air interface and the multiple use of channel is analyzed, the base station control unit of the digital trunked communication system is discussed, the calling control flow is designed

    本文首先綜述了數字集群移動通信系統的發展狀況，針對目前國際上流行的數字集群體制的技術特點進行了比較和分析，並根據我國的具體國情選擇了tetra數字集群系統作為研究和開發的重點，結合對軟交換控制技術的研究和分析，對集群系統重要的v + d空中介面協議及其通道復用進行了較為深入的剖析，對數字集群實驗系統的基站控制部分進行了論述，對呼叫控制流程進行了設計。
  12. In this paper we analyze the characteristics of the source of space data system and give three types of source packet model ; the relationship between m _ pdu multiplexing efficiency and transfer frame completion waiting time has been educed by the analysis of the process of packet multiplexing and frame completion ; then we analyze several key aspects that affect the protocol throughput performance metric to formulate the throughput performance metric of aos packet service

    本文在理論方面，在總結分析空間數據系統信源特徵基礎上，建立三種信源包模型;通過分析包通道復用與成幀過程，得出m _ pdu復用效率與成幀等待時間的關系;探討了三種虛擬通道復用方案;對影響aos協議包業務吞吐量性能指標的幾個關鍵因素加以分析，推導出aos協議包業務吞吐量指標計算公式。
  13. There exits contradiction between the qos guarantee and complexity of channel assignment algorithms. and the channel search time is correlated with the channel utilizing efficiency. so each solution plan is the compromise among these factors

    因為在系統的通信服務質量和通道分配演算法執行的復雜性之間存在矛盾，而且它與通道搜尋時間和通道利用率也有關系，所以任何一種解決方案的提出總是不同矛盾折中的結果。
  14. Resistance would be developed when the activities of any of these three enzymes are increased. the three insecticide target - sites are acetylcholinesterase ( ache ) for organophosphate and carbamate insecticides, voltage - gated sodium channels : knockdown resistance ( kdr or kdr - type ) for ddt & pyrethroids and y - aminobutyric acid ( gaba ) receptors for cyclodienes

    殺蟲劑的作用靶標主要有：有機磷和氨基甲酸酯殺蟲劑的作用靶標?乙酰膽堿酯酶； ddt和擬除蟲菊酯類殺蟲劑的作用靶標?神經軸突鈉離子通道；環戊二烯類和吡唑類等殺蟲劑的作用靶標? -氨基丁酸（ gaba ）受體-氯離子通道復合體。
  15. In epon, the typical network topology is point to multi - point. a downstream packet is broadcasted by olt to all onus. for upstream transmission, all onus share a single fiber, which is the key technology of epon

    Epon系統典型的拓撲結構是點對多點，下行是點到多點的廣播，而上行多點到點的通道復用是epon的關鍵技術。
  16. On condition that all packets can be received successfully, the basestation dynamically schedules uplink and downlink traffic to achieve efficient sdma. approximate analysis of channel utilization is presented

    結果表明， asama協議能有效支持多波束智能天線應用以實現通道空分復用，具有很高的通道利用率與良好的時延性能。
  17. On - board processing ( obp ) is an important direction in satellite communications, where on - board conversion from fdma to tdm is very useful in raising channel efficiency and decreasing cost of earth stations. basing on extensive research of the fdma ? dm conversion, this thesis proposes a new way for such conversion, i. e. fdma ? wtdm conversion, which is based on a china invention patent ? a time division multiplexing transmission technique for band - limited signals

    星上處理是衛星通信技術發展的重要方向，其中星上頻分多址至時分復用（ fdma - tdm ）多址/復用方式的轉換是一個研究熱點，因為它能用於構成一種通道利用率很高、地面站成本很低的fdma / tdm體制的衛星通信系統。
  18. In the gsm 1800 system, the 4 x 3 frequency allocation mode can meet the need, while in the gsm 900 network, the usual practice is that for the bcch carriers, the 4 x 3 reuse mode is used and for other channels, the 3 x 3 frequency hopping reuse mode is used

    在gsm1800的系統中， 4 3的頻率分配方式能滿足需要，而在gsm900中，通常bcch載頻採用4 3復用方式，其它通道採用3 3跳頻復用方式。
  19. And software method can resolve d channel ' s work for its less data communication ; 3 ) cpu 80c152 is synchronized with mc145572 by a simple synchronous circuit, avoiding the complex fpga interface circuit ; 4 ) data transmission use dma, which reduces the delay of data transmission and cpu occupying ; 5 ) 8bit software look - up table method can achieve 16bit crc quickly, which reduces the resource of both hardware and software

    對通信數據量相對小的d通道，採用軟體實現裝幀與解幀。第三，採用結構簡單的外部同步時鐘電路實現80c152和接入晶元mc145572的同步傳輸，巧妙地避開了復雜的fpga介面電路。第四，利用dma技術完成數據快速收發，降低了數據傳輸時延及cpu佔用率。
  20. This paper analyzed packet channel multiplexing completed in vclc sublayer and virtual channel multiplexing completed in vca sublayer

    本文分析了vclc子層的包通道復用和vca子層的虛擬通道復用。
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