收發兩用 的英文怎麼說

中文拼音 [shōufāliǎngyòng]
收發兩用 英文
transmit-receive
  • 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
  • 兩 : Ⅰ數詞1 （數目） two 2 （表示不定的數目） some; a few Ⅱ量詞（市兩的通稱） liang a unit of weight ...
  • 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...
  • 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...
  1. That is, if we want to assign frequencies to a pair of adjacent cities or radio stations, then the difference of those two frequencies used has to avoid the set t. the t - colorings of multigraphs is a more practical case of t - colorings of graphs where interference may occur on different level

    頻率分配問題的圖論模型可以這樣得到：令收發信機為圖中的點，兩點之間有邊當且僅當這兩個收發信機干擾。重圖的t -染色是圖的t -染色的一個較為實用的部分，這是因為在研究頻率分配時，干擾可能會在不同的水平上發生。
  2. 4 there are two types of departmental accounts to hold the outside practice income. the first one is used to fund departments activities and development, while the second one is used to support academic and research activities of individual staff, such as expenses for academic research, overseas conferences and other professional development purposes

    四學系所屬賬戶分為兩種，第一種乃用作支持學系活動和發展的賬戶第二種為用作個別教員學術活動的賬戶，有關收入會用作支持學術研究出席海外會議以及他其專業發展用途。
  3. ( c ) propose the scheme to implementing the coder and deoder of optical time - spreading / frequency - hopping, by assigning two orthogonal codes for one user and using these two codes to encoding 1 and 0 respectively, differential detection can be adopted. not only improves system performances in ber, but also resists the interference such as mai, and does n ' t need any control devices to evaluate the optimum decisive threshold

    通過給每個用戶指定互相關為0的兩個地址碼分別發送1和0信號以及在接收端採用差分檢測技術，避免了ook （開關鍵控）光通信系統中0不發送光脈沖和ook常規檢測方式下最佳判決門限必須根椐用戶數等外界環境而改變，從而提高了系統性能和降低了系統的復雜度。
  4. Land mobile radio transceiver performance recommendations, project 25 - digital radio technology, c4fm cqpsk modulation

    項目25 .地面移動無線電收發兩用機的性能推薦. c4fm cqpsk調制數字無線電技術
  5. Am minimum standards - citizens band radio service amplitude modulated transceivers operating in the 27 mhz band

    最低標準. 27 mhz帶寬工作的城市帶寬無線電業務收發兩用機調制幅度
  6. Digital c4fm cqpsk transceiver measurement methods

    數字c4fm cqpsk無線電收發兩用機測量方法
  7. Minimum standards - citizens band radio service amplitude modulated transceivers operating in the 27 mhz band

    最低標準.運行在27mhz波段的民用波段無線電通信業務調幅無線電收發兩用機
  8. In views of hebei province ' s existing situation of rural economy, and with reference to the civil and abroad achievements in scientific research on the field, this thesis choose two sample groups - 11 cities and 138 counties of hebei province in light of division into districts and analyses the rural economy difference of hebei by using total and mean index, the social product gross of rural, rural labor productivity, the mean net income of rural, and methods of variation coefficient, comprehensive index and so on.

    針對河北省農村經濟發展的現狀，本文借鑒國內外區域經濟差異的有關研究成果，以現行行政區域為基礎，通過截取河北省11個地市和138個縣（市）兩組不同的樣本，選取總量指標農村社會總產值，人均指標農村人均社會總產值、農村勞動生產率、農民人均純收入，運用變異系數、綜合指數等方法對河北省農村經濟的差異進行分析。
  9. Although economic and population specialists and scholars both in abroad and at home have made extreme progress on research the question of rural labor since they studied it very long ago, as far as china is concerned, based on the following three aspects, firstly, the national condition of our country determined that the foreign theory such as lewis theory might instruct us but we ca n ' t use these theories without rectification ; secondly, in china, our research about this question prefer the qualitative analysis to the quantitative analysis ; thirdly, the research on the labor utilization and shift in this specific area, that is, in the mountainous rural area which covers 69 % of our mainland and occupies 56 % of population is absolutely scarce in present ? to make up for the three deficiencies, this paper selects the econometrics analysis, uses investigation data and by virtue of tsp software, establishes a model where shift labor is the dependent variable and the citilization ratio, industrial structure, the income gap between city and country, the rural infrastructure construction, the labor ' s aptitude and the population ' s natural growth ratio are the variableso through economic, statistical and econometrical test, the conclusion is attained : the income gap between city and country and the citilization ratio are the two most important fectors which affect the labor ' s utilization and shift in mountainous rural area -, the rural infrastructure construction and the labor ' s aptitude are the two relative important factors which affect the labor ' s utilization and shift in mountainous rural area while the rural industrial structure and the population ' s natural growth ratio are the two least important factors according to this, this paper puts forward several suggestions that the income gap between city and country, citilization ratio, rural education, rural industrial structure and agricultural mechanization should be carefully treated with on studying the question of labor utilization and shift in mountainous rural area. finally, this paper points to several suspending problems about this research in order to get the concern of specialist and scholars

    盡管國內外經濟和人口學方面的專家與學者很早就開始了對農村勞動力問題的研究並取得了極大的進展，但是，我國在研究農村勞動力問題時，基於三點：其一，我國國情決定了國外的理論例如劉易斯理論，雖然對研究我國的農村勞動力問題具有指導意義，但卻不能照搬這些理論；其二，從國內看，我國對該問題的研究重視定性分析而定量分析明顯不足；其三，缺乏對我國占國土面積69 、人口56的山區農村這一特殊區域內的勞動力開發利用及轉移的專門性研究。為了彌補這三個缺憾，論文採用經濟計量學的數量分析方法，利用實際調查資料，藉助tsp軟體，建立了以外出勞動力數量為被解釋變量，城市化率、農村產業結構、城鄉收入差距、農村社會基礎設施建設、農村勞動力素質以及人口自然增長率六個變量為解釋變量的模型，通過對該模型進行經濟學、統計學、經濟計量學三個方面的檢驗，得出如下結果：城鄉收入差距和城市化率是影響山區農村勞動力開發利用及轉移的最重要的兩個因素；農村社會基礎設施建設和農村勞動力素質是較為重要的兩個影響因素；而農村產業結構和人口自然增長率相對來說是較不顯著的影響因素。據此，本文提出了在研究山區農村勞動力開發利用及轉移問題時，應慎重對待城鄉收入差距、城市化水平、農村勞動力素質、農村產業結構、農業機械化五個問題。
  10. The diet of legume and animal and diet that contains iron should be increased and the absorption and utilization of iron should be improved

    提示兩地居民膳食屬發展中國家模式，應調整膳食結構，增加豆類及動物性食物的攝入量，並增加含鐵食物的攝入量，提高機體對鐵的吸收和利用。
  11. The van suddenly accelerates, practically running them off the highway, its weird horn wailing. . . one a desolate country highway, two homeward - bound teens gina philips, living out loud and justin long, tv s " ed " are nearly run off the road by a maniac in a beat - up truck ? and later spot him shoving what appears to be a body down a sewer pipe

    一對兄妹暑假回家路上，無意中發現一隻嗜血魔怪，專門四齣尋找美味器官，吞噬后再收為己用，魔怪手段凶殘成性，好奇的哥哥決心追蹤這只魔怪，怎知反而引來魔怪作出連串突襲，小鎮上頓時屍橫遍野，人人身首異處，最終兩兄妹在教堂地牢發現絡極秘密
  12. Vecon - con system is triggered by 4 infra - red sensors along the selected lanes with 2 in pairs. false trigger by wind shield and container - type trucks are dalian yaowan phase ii screened out and the system captures and recognizes container numbers, country codes, iso codes automatically in less than 0. 012 seconds from trigger till image capture. the captured images are transmitted to the tos for processing which enhances efficiency and ensures security while maintaining manpower at the minimal

    Vecon - con透過四個紅外線對射敏應觸發器進行觸發，兩個一組並列于車道上，具備防止集裝箱型卡車大型集裝箱車拖頭等誤觸發，系統接收到觸發信號后，自動抓拍集裝箱號碼國家代碼箱形代碼，抓拍的圖像會被傳送到碼頭控制系統中心進行后臺處理，該系統由觸發到抓拍只需不多於0 . 012秒，整個系統大大提高了口岸工作效率，並減低了人力物力的耗用，為港口碼頭的管理提供了更加高效可靠的處理手段。
  13. According to the proposal, two millimeter - wave phase locked sources are locked on a crystal oscillator. the one of the phase locked source is used for steady carrier wave in transmitter, the other is used for local oscillator. through the proposal, coherent transceiver front - end is achieved

    本方案採用同一晶振源為收發兩個毫米波鎖相源作參考頻率，其中的一個鎖相源用於產生高穩定的發射載波頻率，另一個用於產生高穩定的本振信號，從而實現收發的相參性。
  14. Cad spent about $ 2 million on the y2k compliance programme, mainly for the provision of portable power generators, and contingency communication facilities including satellite phones, portable hfvhf transceivers, and pc - based message switching system, etc. more than 120 cad staff are deployed for y2k - related duty yesterday and today

    民航處耗資約二百萬元推行電腦公元二千年數位工作計劃，主要是提供流動發電機及緊急通訊器材，例如衛星電話、流動高頻甚高頻收發兩用機和以個人電腦處理的航空電報自動轉送系統等。
  15. Based on the results of numerical simulation, the conversion and destruction of available energy had been studied. the exergy destruction in and out of the heat exchanger were also researched. the thermal efficiency and exergy efficiency of indirect evaporative cooler were defined according to the thermodynamic performance of heat and mass transfer

    在大量數值模擬的基礎上，分析了考慮與不考慮冷凝的間接蒸發冷卻過程中能量以及有用能的轉化和損失情況，並根據兩種情況下的收益火用和代價火用的特點，分別定義了火用效率的計算表達式。
  16. Pig receiver & launcher are important parts of pigging equipment, which is installed on both ends of pipeline to launch or receive the pig

    清管器收、發球筒是清管掃線設備的重要組成部分，它在管線兩端用於發射及接收清管器。
  17. To ensure the precision of distance measuring, the high - speed laser driving circuit and the detect - amplifying circuit constituted by two class high - speed operational amplifiers are used in auto adaptive cruise - control system, and the laser flying time is measured by a sixteen bit ' s binary counter, whose counting frequency is 100 megahertz

    為保障測距精度，裝置採用高速激光器驅動電路和由兩級高速運算放大器構成的探測放大電路，並用一個計數脈沖頻率為100mhz的16位二進制計數器完成激光收發間隔時間的測量。
  18. Fortunately, a novel creative technology, namely multiple - input multiple - output ( mimo ), has provided an innovative solution to this problem. mimo technology utilizes multiple antennas at both transmit and receive ends of the radio link to multiply the capacity and reliability by fully exploiting the space resource within the same frequency band at no additional power expenditure

    可幸的是，多入多出（ mimo ）無線通信技術為解決該問題提供了全新的途徑，它在無線鏈路收發兩端均採用多天線，充分開發空間資源，在無需增加頻譜資源和發射功率的情況下，成倍地提升了通信系統的容量與可靠性。
  19. Recently, multiple input multiple output ( mimo ) system which originates from the employment of multiple antennas at transmitter and receiver has many advantages such as large system capacity, high spectral efficiency. on the other hand, orthogonal frequency division multiplexing ( ofdm ) which bases on the orthogonal transmission of sub - carriers also has some obvious merits such as strong anti - multipath ability, high spectral efficiency. the combination of the two techniques mimo - ofdm, has become a hotspot recently and regarded as promising technique for future next - generation mobile communication systems

    近來，在無線通信系統中的收發兩端同時使用多根天線的多入多出（ mimo ， multiple - input - multiple - output ）通信結構，具有系統容量大、頻譜效率高等優點;基於正交的多路子載波并行傳輸的正交頻分復用（ ofdm ， orthogonalfrequencydivisionmultiplexing ）技術，具有抗多徑能力強、頻譜效率高等優點，二者的結合，即mimo - ofdm技術，被認為是構建下一代移動通信系統的框架技術。
  20. According to the nyquist first criterion, the usual way is to use raising cosine shaping filter in real communication system. by choosing appropriate rolling off factor and determining the distribution of its characteristics between the transmitter and the receiver, the shaping, filter will minimize the nonlinear distortion, of channel

    根據奈奎斯特第一準則，在實際的通信系統中，通常的途徑是採用升餘弦滾降成形濾波器，選擇適當的滾降系數，並確定其特性在收、發兩端的分配問題，以便將通道非線性的影響最小化。
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