短波限 的英文怎麼說

中文拼音 [duǎnbōxiàn]
短波限 英文
short-wave length limit
  • 短 : Ⅰ形容詞（空間、時間兩端之間的距離小） short; brief Ⅱ動詞（缺少; 欠） lack; owe Ⅲ名詞1 （缺點） we...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 短波 : [電學] sw （short wave）; high frequency wave
  1. The less the wavelength, the smaller can be the region of confinement of the wave.

    波長越短，波的局限區域就越短。
  2. The shorter the wavelength, the smaller the limit of resolution of a microscope.

    波長越短，顯微鏡的分辨限就越小。
  3. Shortwave channel is time varying transmission channel. it has dispersion in frequency and time domains. this characteristics hinds the data transmi - ssion at high speed and the correction of received data. in this dissertation i have analyzed the statistic characteristic of shortwa - ve channel, established the model of shortwave channel and simulated the rayl eigh fading distribution. the technology of spreading spetrum has been proved that it has the capability for anti - multipath and discerning multipath

    在短波通信中，由於通道的時間色散和頻率色散，引起多徑展寬和多徑衰落，前者限制了數據的傳輸速率，後者造成短波數據通信中出現突發錯誤，為了解決多徑效應對短波通信的影響，本文所做工作如下：首先詳細分析了短波通道的統計特性，建立其數學模型；其次分析了擴頻通信的特點，從理論上證明擴頻技術不僅具有抗多徑干擾能力，而且具有分離多徑的能力；介紹了傳統的rake分集合併技術的特點。
  4. Superior frequency characteristics shortest recovery time, realize the switching of the circuit, complete functions such as open and close, clip wave, wave detector, high - frequency rectifier, logic control, which fit for all kinds of digital circuits and analog circuits

    具有良好的高頻開關特性反向恢復時間短，可實現對電路開和關的控制功能，可完成開關限幅檢波高頻整流邏輯控制等功能，適用於各類數位電路類比電路。
  5. Ningbo liantong automobile leasing co., ltd. exclusively leases out various saloon cars and business cars. car settings and leasing types are subject to customer s choice. scope of services includes long or short term leasing, long or short term charter, airport pick - up, guest transportation from and to hotel, and business investigation, etc

    寧波聯通汽車租賃有限公司專業租賃各種轎車和商務車，可根據客戶的需要選配車型，並有多種租賃方式供客戶選擇，包括長短期租車，長短期包車，機場接機，賓館迎送，商務考察等業務
  6. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。
  7. In this thesis, first, we present the theory of sess system, the generation of the sess spreading code and its characteristics and the acquisition theory of conventional spread spectrum communication system. an efficient acquisition scheme based on periodically transmitting the synchronization head, which is composed of binary chaotic codes, using the matched filter and automatic decision threshold - level control based on a so - called constant false alarm criterion for sess system is present. the acquisition model of sess system is built and simulated in the awgn channel, the raleigh fading channel and imulti - address interfere condition

    本文首先概述了自編碼擴頻通信的原理、自編碼擴頻序列的產生方法及其特性和擴頻通信系統編碼同步的理論，然後針對自編碼擴頻通信系統提出了擴頻序列捕獲方案:周期性地加入混沌序列同步碼，並採用恆虛警率匹配濾波器捕獲法;在加性白高斯噪聲通道、瑞利衰落通道和多址干擾情況下進行了模擬，分析了各種捕獲性能:在選擇性能最優的混沌序列、適當的序列長度、虛警概率及門限值的情況下，可以獲得較短的捕獲時間和較大的捕獲概率。
  8. In ning bo han quan expands increasingly 2006, the company expands endowment established limited company of tall building materials of ning bo name, introduce germany supreme metal condole supports, the international of the building materials industry such as floor of japanese long xiliu pvc is top - ranking brand, short a few months already signed peaceful wave city marine world of city of major project ning bo, north logical sequence is communal and wholesome city of bureau of inspect of card of city of center, peaceful wave, bank of china, peaceful wave is commercial bank, new edifice of world business affairs, yin dianbin house, from now on our development turned over new one page again

    在寧波漢泉日益壯大的2006年，公司斥資成立了寧波名高建材有限公司，引進德國至高金屬吊頂，日本龍喜陸pvc地板等建材行業的國際一流品牌，短短數月已簽下了寧波市重點工程寧波市海洋世界、北侖公共衛生中心、寧波市證監局、中國銀行、寧波市商業銀行、新天地商務大廈、銀殿賓館、利登公司、嵊州巴貝集團…等一批重大優質工程，從此我們的發展又翻開了新的一頁。
  9. In this paper ， an optimal search strategy by dividing the whole surveillance area into regions is presented so that the optimal search can be adaptively implemented in phased array radar. firstly ， the inherent relationship among average discovering time ， radar resources consumption ， search frame period and target distribution density is studied. secondly ， parameters for the region search are optimized to achieve the optimal search performance inside regions. then ， the optimal search frame period for each region is derived to minimize the average discovering time of targets ， where the constraint of radar time resource and the importance of each region are taken into account. finally ， the adaptability of this search strategy is discussed. only if the optimal parameters for each region are utilized and the beams are scheduled according to the optimal frame period under the radar time constraint ， the optimal distribution and the optimal scanning sequence of beams can be implemented adaptively. thus ， optimal search is adaptively implemented in the whole surveillance area

    本文提出一種分區搜索演算法，實現了相控陣雷達的自適應最優搜索.首先，研究了各區域平均發現一個目標消耗的雷達資源和目標被發現的平均時間同搜索幀周期以及目標強度的關系；然後，研究了在各區域採用兩步搜索演算法的最優參數設計，實現了局部區域的最優搜索；其次，在雷達時間資源有限和區域重要性加權的約束條件下，導出了使目標被發現的平均時間最小的區域最優幀周期；最後，討論了分區搜索演算法的自適應性.只要採用各區域的最優參數，按最優幀周期調度雷達波束，就可以自適應地實現使目標被發現的平均時間最短的波束的最優分佈和掃描順序，即自適應最優搜索
  10. One is direct microwave induction into the brain of the subject, limited to short - range operations

    一種是直接的微波感應進入目標對象大腦，限於短范圍的操縱。
  11. We believe that this is a good, long - term investment, but the requirement to hold it regardless does constrain our ability to limit the effect of short - term fluctuations in hong kong equity on the investment performance of the exchange fund

    我們相信這是一項有利的長期投資，但這項規定始終局限了我們控制港股短期波動對外匯基金投資表現的影響的能力。
  12. Each wavelength of optical radiation has an associated threshold retinal exposure level that must be exceeded in order for retinal damage to be observed - shorter wavelengths are more effective in that less energy is needed

    對應每種波長的光都有一個極限值，超過這個極限值才能使視網膜受到損害.對于較短波長的光幅射，這個極限值的能量強度較低
  13. And then, the thesis import a thrice - polynomial technology to depict the yield curve of shanghai stork exchange market and gained the yield curve chart. under one factor model hypothesis, deduce the bond pricing formulae. based on 1945 data of buy - back rate in banking market, the thesis use ols and gmm estimation technologies to estimate the parameters of vasicek model, cir model, and ckls model, and verify which model can explain the china market ’ s short rate ’ s wave

    然後，從實證的角度，用三次多項式來擬合上交所國債收益率曲線，並得出收益率曲線圖，在單因素模型推導了動態理論期限結構下的債券定價公式，並以1945個中國銀行間債券市場7天回購利率數據作為短期利率的代表，驗證vasicek模型、 cir模型與ckls模型是否適用中國短期利率的波動行為，估計出三個模型的參數。
  14. In order to satisfy our customer ' s requirrment for high quality, low provide and short shipment time, we furnish our company with advanced processing equipment and experienced technicians

    為了滿足客戶的高品質，低價格，短交期的需求，波翔模具製造有限公司配備了先進的加工設備和經驗豐富的技術人員。
  15. With the addition of kc1, infrared cut - off wavelengths almost remained constant, but the short - wave absorption edges shifted towards shorter wavelength next to the visible transmission spectra

    隨著kcl的加入，玻璃的透紅外截止波長沒有變化，短波吸收限向短波移動。拉曼光譜表明： kcl與ges _ 2不發生相互作用。
  16. The technology of very low bit rate for hf ( high frequency ) communication means that, one technology of ecm ( electronic counter measures ) resistant communication is developed for low bit data message exchange in the time of battle which data communication is destroyed by electronic disturber. it is regarded by armies in the battle of information, because that it can overcome the very low snr ( signal noise ratio ), very high narrow - band interference and multipath with maxium delay of fifty millisecond

    短波最低限度通信技術是在戰時強電磁干擾情況下能實現保證最低限度的數據報通信的一種抗干擾通信技術。由於其能有效的克服極低信噪比、較強的窄帶干擾和幾十毫秒的多徑，在信息戰中受到各軍高度重視。
  17. The subject comes from the cooperation project “ long distance navigation short - wave receiver ” between chengdu sine science & technology ltd. and automatization school of harbin engineering university. the auther was responsible for implementation of the rf receiver of the system. the rf receiver consists of a rf front end, 3 dds synthesizer

    本項目來源於電子科技大學成都賽英科技有限公司與哈爾濱工程大學自動化學院的合作項目「遠距離導航短波接收機」 ，筆者負責其中接收機射頻部分的研製，該射頻接收機包括一個射頻前端和3個dds頻率合成器。
  18. Limited to the environment, the traditional used hydrologic telemetric equipments are data transmitter and ultrashort wave transmitter - receiver

    由於水文自然環境的限制，傳統測報主要使用數傳儀、超短波電臺等測報設備。
  19. The ir cut - off wavelengths are around 12. 8 m due to the ge - o impurities, the transmittance is up to 80 %. the short - wavelength absorption edge shifts from 453nm towards ultraviolet region to 410nm with increasing cscl content, the transmittance in visible region also increases in the same sequence

    由雜質基團ge - o鍵引起的紅外截止波長在12 . 8 m附近，紅外透過率達80 ；隨cscl含量的增加，紫外吸收限向短波方向位移，從453nm移至410nm ，且透過率增加。
  20. This task uses the ds - ss technology, and researchs the important technologies, such as synchronization of ds - ss, rake receive, narrow - band interference suppression, etc. these technology are useful for the voice - band channel of hf. i designed one system of very low bit rate for hf data communication, and completed the softwave module design of the system. i get the result of system ' s simulator, it ' s useful for the system realization

    根據短波音頻帶寬通道的特點，重點對系統的擴頻同步技術、 rake接收技術和窄帶抗干擾技術進行了專題的研究。並根據自己多年的科研經驗，設計了一種具有實際意義的短波最低限度通信系統，並對實際的軟體實現進行了模塊化的設計。
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