收發特性 的英文怎麼說

中文拼音 [shōufātèxìng]
收發特性 英文
transceiver features
  • 收 : Ⅰ動詞1 （把攤開的或分散的事物聚集、合攏） put away; take in 2 （收取） collect 3 （收割） harvest...
  • 發 : 名詞（頭發） hair
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 收發 : 1 （收進和發出公文） receive and dispatch2 （擔任收發工作的人） dispatcher3 [電學] transmit recei...
  • 特性 : characteristic（s）; character; performance; features; properties; behaviour; response; character...
  1. On the basis of foreign documents, the dissertation firstly describes the morphology, taxonomy, and biological characters of cochineal insects. then, by using artificial climate cases in the lab, according to orthogonal design, 8 lands of combinations of temperature, humidity and light is set, while the temperature has four levels : 15, 20, 25 and 30, and the relative humidity has two levels : 60 % and 80 %, while the light also has two levels : 980 lux and 60 lux. through observations and analysis of hatching percentage, survival percentage of the first instar and during from the second instar to the adult, the population tendency index, generation life cycle, size and eggs of female adult, the development of the cochineal under different conditions is studied

    在收集、整理國外對胭脂蟲的研究資料基礎上，首先從胭脂蟲的形態學、分類學、生物學特性入手，進而在實驗室內利用人工氣候箱，應用正交設計方法，設計了4種溫度、 2種濕度、 2種光照梯度的不同組合，通過測定胭脂蟲的孵化率、 1齡若蟲的存活率、 2齡若蟲至成蟲期存活率、種群趨勢指數、世代歷期、雌成蟲的大小、懷卵量等生物學指標，深入研究胭脂蟲在這些組合下的生長發育狀況，應用數理統計方法，分析出溫度、濕度和光照對各項生物學指標的影響，找出胭脂蟲適宜的室內培育條件，並為野外胭脂蟲的培育提供一定的理論依據。
  2. In recent years, plentiful and substantial fruits achieved by the lb method in simulations of hydraulics, multiphase flows, flows in porous media and heat transfer as well as magnetohydrodynamics, have revealed a broad perspective of application of this method, it will become a powerful competitor to the conventional approaches. in order to absorb the recent achievement in theory and application of the lb method, explore new ways in hydraulic computation to promote the development of practice, some work is car ried out in this thesis, as following : advances in the theory research and application, deductive process of the d2q9 model and some other commonly used models of the lb method are summarized. based on the hydrodynamic and general boundary conditions, a new joint boundary condition is presented, it integrates advantage of the two conditions above and obtains very good results in dealing with all kinds of boundaries of flow fields

    為了消化和吸收近年來lb方法在理論和應用方面的新成果，探索在水力計算方面的新途徑以促進lb方法實用化的發展，本文進行了下列研究工作：綜述了lb方法在理論研究和實際應用方面的新進展，以及d2q9模型的推導過程和其他一些常用的模型；在水動力邊界條件和通用邊界條件的基礎上提出了一種新的聯合邊界條件方法，它綜合了上述兩種邊界條件的優點，在流場的各種邊界處理中取得了非常好的效果，經過模塊化的處理以後這種邊界條件具有更好的實用性；針對均勻網格的lb方法計算效率較低的不足，提出了雙重網格的latticeboltzmann方法，通過二維poiseulle流動、后臺階流動和渠道方槽流動三個算例的模擬，證明這種方法能夠明顯地提高流場模擬的計算效率；此外，根據復雜區域流場的特徵提出了latticeboltzmann方法的分塊-耦合演算法，利用lb方法的計算特性實現塊與塊之間的數據交換，充分利用計算資源提高計算效率，通過對「 t 」型、 「十」型和「 x 」型分岔管道流場的模擬，展示了這種演算法的特徵和優點，以及它所具有的應用前景。
  3. ( 2 ) in terms of measured data, we analyse the spectrum characteristic of the vary kinds of water, and summarize that the content of nacl has little influence on the spectrum absorption coefficient in the pure solution of saltworks

    從實測數據出發，探討在鹽田的各種水體中， nacl的含量對水體的光譜吸收系數的影響，並對不同種類水體的光譜特性進行分析。
  4. In order to offer reference to integrated application of species for tamarix l. in china, this paper discussed the taxonomy, biology and physiology characteristics of tamarisk, reviewed the research advances on investigation, identification and evaluation, collection and storage of germplasm resources of tamarisk l., and summarized genetic breeding, seeding seedlings, cutting seedlings and tissue culture of tamarisk l. so as to put forward the direction of innovative research and application based on indicated problems in research of germplasm resources of tamarisk l

    摘要為了為檉柳屬植物的綜合開發應用提供參考依據，文章論述了檉柳屬植物的生物學和生態學特性，綜述了我國檉柳屬植物種類的資源調查、鑒定評價、收集保存及引種育種情況，總結了國內檉柳播種育苗、扦插育苗和組織培養育苗的研究現狀，指出了檉柳屬植物種質資源研究方面存在的問題，提出了檉柳屬種質資源創新研究和開發利用的建議。
  5. Based on mono - pulse radar system and the analysis of terrain echoes, a geometrical model of air to ground ranging is constituted. by using the signals received from the sum and difference channels of terrain follow radar, a group of the expressions for terrain echoes are educed and characteristics of these echoes are obtained. according to the characteristics of the echoes, the theory and method of pass zero detection of difference channel and its applications are discussed in detail

    針對一維單脈沖雷達體制，分析了地形目標回波特性；建立了地形跟隨雷達空地測距的幾何關系；利用雷達收發信號，導出了地形跟隨雷達和差接收通道的回波信號表達式，進行了波形模擬，得到了地形跟隨雷達的地面散射產生回波在時域中的特性；根據和差回波特性，闡述了差信號過零點檢測測距的原理和方法及工程實踐中的應用，並給出了真實雷達對外輻射試驗的結果，驗證了文中的模擬。
  6. For general bonds we based on the actual rate of bad debts, for those special bonds which potentially be bad debts we consider the possibilty to settle, & nbsp ; to calculate the amount that can ' t be settled

    對於一般債券根據呆帳實際發生率，有呆帳危險的特別債權分別考量其回收可能性，來計算可能無法回收的金額。
  7. The promotion of industry development, the apparent employment function and service function of tertiary industry are the reasons why tertiary industry has more and more driving function to urbanization. the driving function of urbanization to tertiary industry is becoming apparent because of agglomeration effect of urbanization and the agglomeration characteristic of need for tertiary industry. the cities " agglomeration scale affect the need scale and structure for tertiary industry, thereby affect the scale and structure of tertiary industry

    第三產業需求的集聚性和高的收入彈性以及工業化集聚的經濟特性解釋了第三產業是到工業化發展到一定階段后成為城市化主導動力；經濟結構的進化與第三產業強大的就業效應、服務效應是城市化對第三產業依賴性日益增強的三個主要因素，城市化的集聚效應以及第三產業需求的集聚特性使得城市化對第三產業發展動力作用也日益明顯；城市的集聚規模影響第三產業的需求規模和結構，從而影響第三產業的規模與結構。
  8. J - aggregates are specific supramolecular assemblies discovered by jelly and scheibe, which are characterized by a sharp, intensive absorption band with a bathochromic shift compared to a monomer band

    20世紀30年代末期， jelly和scheibe發現一種特殊的超分子聚集體? j -聚集體，它具有尖銳且相對其單體紅移的吸收帶的獨特光學特性。
  9. The word " schema " first appeared in kant ' works at that time, kant attempt to combine the knowledge category with the perceptual object by scheme to find its great influence on knowledge acquisition, but his scheme was priori in the history of modern psychology, the gestalt school was the first one who payed attention to schema at the general theory level, and jean piaget also thought highly of schema, his theory was called schema theory, but this theory neglect the function of society and education, that is to say, in some degree his scheme theory has the incline of biologization

    但其理論忽視社會和教育的作用，因此，其圖式學說存在一定程度的生物化傾向。從心理學史發展的另一條線?經驗主義來看，重視過去經驗的作用，認為圖式具有積極主動加工的特點。現代圖式理論是在吸收了理性主義和經驗主義，又在信息科學、計算機科學的發展以及心理學關于表徵研究的基礎上，於20世紀80年代興起。
  10. The signal format of gps is analyzed, the principle models and mathematical models are established, the ber performance is analyzed in a channel interfered with wide - bandwidth awgn, narrow - bandwidth awgn, transmitted signal, single - tone signal respectively. based on the results above interference methods are discussed and simulated. then the performance of code acquisition and code trace of a digital gps receiver are discussed. the modem of linkl 1 and link4a are modeled and their ber performances are analyzed and simulated in channel s interfered with awgn, single - tone signal and multi - tone signal respectively

    建立了jtids的收發終端的數學模型，分析它在噪聲干擾、相關干擾、互相關干擾下的誤碼性能，提出較佳的干擾方法和干擾碼型，並進行模擬模擬；分析了gps的信號格式，建立了gps的原理框圖模型、信號數學模型，並對其在寬帶噪聲干擾、窄帶噪聲干擾、轉發干擾、單頻干擾等情形下的誤碼性能進行了分析比較，提出相對較佳的干擾方法，並做了計算機模擬，針對一數字式gps接收機中擴頻碼捕獲與跟蹤環的特性進行分析；建立了link11和link4a數據鏈調制解調數學模型，對它們在噪聲干擾、單音干擾、多音干擾等下的誤碼性能進行分析，最後對干擾情況進行了模擬模擬。
  11. This paper tries to have some innovations in the following aspects : ( 1 ) the main cause of our tax revenue depending mainly on turnover tax is short of innovation in system ; ( 2 ) it ' s innovation in system to impel the rising of income tax in developed counties, which is a good example for us to learn from in the optimization of our tax structure ; ( 3 ) the main function of turnover and income tax should be separated according to their characters ; ( 4 ) the reforms in turnover and income tax should be taken simultaneously, congenially and complementally, although the former will be more progressive while the later more abrupt ; ( 5 ) the essential function of tax is to raise revenue, but its fair - promoting effect is much more obvious in disbursing than in collecting

    本文力求在以下幾個方面有所創新： （ 1 ）認為我國稅種收入過度依賴流轉稅的主要原因是制度創新力度不夠； （ 2 ）認為制度創新是推動發達國家所得稅從弱到強的主要原因，提出我國稅種結構優化需要在制度上大膽創新； （ 3 ）提出根據各個稅種的特性，流轉稅和所得稅的主要功能應有所分工； （ 4 ）流轉稅和所得稅的改革應雙管齊下，以漸進的方式改革流轉稅，以突變的方式改革所得稅，分工協作，優勢互補； （ 5 ）提出稅收的主要功能是籌集收入，稅收在徵收環節在促進結果公平方面效果甚微，稅收在支出環節更能有效促進結果公平。
  12. A reasonable position of driving nozzle helps to achieve the maximum material flow that also depends on other parameters such as backpressure, properties of conveyed material and driving gas. it is observed that, an increase of convergent section angle is harmful to the pneumatic conveying system, and also influences on the mass flow rate of conveyed material, the distribution of static pressures in injector and the pressure drops of conveying pipe. in addition, within a reasonable scope of air mass rate, increasing the driving jet velocity is more advantageous than enlarging the dimension of driving nozzle

    試驗研究發現，氣體噴嘴位置對氣固噴射器的輸送能力影響最大，氣體噴嘴存在某一最佳位置，而這一最佳位置與背壓、輸送物料特性和輸送風特性相關聯；氣固噴射器的收縮角對其輸送能力、內部靜壓分佈和輸送管阻力特性均有適量影響，收縮角增大對整個輸送系統均不利；在適當的輸送風范圍內，提高氣體噴嘴出口速度比擴大氣體噴嘴尺寸更為有利，但氣體噴嘴出口速度過高會增加氣固噴射器和輸送管內的能量損耗，給輸送帶來不利的影響；系統背壓與氣固噴射器的氣體噴嘴出口速度的選取有關。
  13. The paper mainly designs the electronic official document transport system, analyzes the framework, key technologies and securities. this paper put forward to the scheme about these key technologies, such as the user ' s certificate exchange, secret key management, red - header document and seal processing, files " inputting, and datum compressing. the paper introduces the detailed implement of the project with a demonstration

    對電子公文傳輸系統的功能需求、關鍵技術以及安全性進行了深入研究和分析，本文重點對電子公文系統中的傳輸子系統作了詳細的需求分析和系統結構設計，該設計全面考慮了電子公文在傳輸過程以及收發文過程的機密性、完整性、真實性以及不可否認性等特性，提出保障系統的機密性、完整性、真實性及不可否認性的解決方案。
  14. By making full use of favourable narrow - band tracing filter character of pll and by combining the merits of dds such as super fine frequency resolution 、 high frequency accuracy 、 very fast frequency hoping with it, the pll / pll + dds frequency synthesizer presents wide band high quality source and super small frequency hoping step. while the electronically tuned filter abates the image interference and notably improves the selectivity. the theorem of frequency synthesizer and center - frequency - fixed filter is simply but adequately introduced first in this paper

    課題中所採用的pll或dds pll鎖相頻率合成方法充分發揮鎖相環良好的窄帶跟蹤濾波特性，並結合dds的高頻率解析度、高頻率精確度和高速頻率捷變等優點，分別實現了系統所要求的高質量寬帶本振源和小步長頻率捷變；採用電調諧選頻技術，則大大改善了接收機的選擇性和抗干擾能力。
  15. And the working principle and circuit makeup of the optical transceiver are analyzed in detail. secondly, according to the actual requirements, optical transmitter and optical receiver were designed into a small module to carry out low - rate optical transceiver. finally, fundamental parameters of the optical transceiver are tested under existing conditions

    本文在簡述光纖通信原理的基礎上，從最基礎的光有源器件工作原理、特性入手，重點闡述了光收發一體模塊電路結構以及工作原理，在此基礎上根據實際情況設計了光發送、接收電路，實現了低速率光收發一體模塊，並在現有條件下對該模塊進行了初步測試。
  16. Influence of harvesting time of perennial ryegrass on germination and vigor of seed

    多年生黑麥草收獲時間對種子發芽特性及其活力的影響
  17. The 4 - layer printed circuit board, which proposes good electro magnetic compatibility, electrical trait and heat elimination ;. full / half duplex auto - negotiation support ; diagnostic monitoring for malfunction indication and troubleshooting ;. supporting hot - pluggable ; good compatibility ; good at heat elimination. 1. 25gbit / s sfp optic transceiver has been deployed in various broadband applications will be used in backbone networks of ring or daisy - chain topologies

    我們設計的光纖收發器有良好的電磁兼容性，並保證了電路板的供電特性和散熱特性、支持全半雙工自適應、具有數據診斷功能、準確方便的判斷網路故障、支持熱插拔操作、兼容性良好。
  18. In view of the fact that prediction of creep and shrinkage with current bridge provision for specific concrete under specific ambience sometimes has a big discrepancy with real values, a new method to obtain the expressions of creep and shrinkage from newly - built pc bridges short - term test results is presented, and relative equations have been established. therefore, a reliable long - term prediction on effect due to creep and shrinkage in pc bridges holds a firm bearing point

    研究中發現某一特定環境下工作的混凝土用現有規范公式預測得到的徐變、收縮特性常有偏差較大的現象，由此提出了從新建預應力混凝土橋梁短期試驗結果推算梁體相應素混凝土在工作環境下的徐變、收縮特性的思想和方法，並建立了計算式，為新建預應力混凝土橋梁可靠的徐變效應分析提供了前提和保證。
  19. Meanwhile, we also study the convergence behavior of iterative detection in different methods, which are the proposed average source entropy and the covariance matrix perturbation characterized by the variations of its dominant eigenvalue as well as the conventional approach based on the mutual information

    為了分析迭代譯碼的收斂特性，本文從不同角度出發，在研究了傳統的互信息方法的基礎上，本文首次提出並使用了平均信源熵和用協方差矩陣最大特徵值表徵其抖動這兩種方法，使迭代過程的收斂分析變得簡單方便。
  20. The influence of mineral materials such as fly ash, blast furnace slag and silica fume on expansion performance of the common concrete and compensating - shrinkage concrete was researched

    在此基礎上，研究了高強混凝土在不同齡期的收縮規律，發現高強混凝土的收縮特性與普通混凝土存在顯著不同。
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