改頻率 的英文怎麼說

中文拼音 [gǎibīnlǜ]
改頻率 英文
to change a frequency
  • 改 : Ⅰ動詞1 （改變） change; transform 2 （修改） revise; alter; modify 3 （改正） rectify; correct 4 ...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 頻率 : frequency; rate
  1. Cycle frequency - based blind beamforming shows the performance degradation due to cfe ( cyclic frequency error ). an improved algorithm is presented in literature 6, which adopting forgetting factor in estimation cyclic correlation matrix would largely depress the sensitivity of cab to cyclic frequency error. by using this method, the improved algorithms of the c - cab and ecab algorithms are presented in this dissertation

    針對基於循環頻率的盲波束形成演算法對循環頻率誤差cfe （ cyclicfrequencyerror ）很敏感而導致演算法性能下降的情況，參照文獻[ 6 ]提出的遺忘因子cab演算法，提出了c - cab演算法以及基於特徵空間的盲波束形成演算法（ ecab ）的改進演算法。
  2. We try to find a correction to the frequency of waves.

    我們試圖找出對波的頻率的改正量。
  3. It means that there is no first-order correction to the frequency of waves.

    這就意味著，不存在對波的頻率的一階改正項。
  4. The cumulation of tdfcsd in a certain period eliminates the remainder noise more, and the ability of detecting signal ' s frequency is improved

    通過對某段時間得到的功率譜密度累積，進一步改善snr ，提高信號頻率的檢測能力。
  5. The dissertion, after introducing physical geography situation and societal economic sitiuation of chongqing, has also analysed the basic feature of water resources in chongqing, at present the water resources utilization in chongqing is still in traditional phase. there are so many faults and shortcomings in water resources management system. the construction of water resources institutions and regulations is fallen behind. the supply of water resoures has not sufficiently satisfied the demand to water resources. the condition of water quality has not radically improved. soil losses is still serious. the incidence of flood and drought is very high. in accordance with present condition of water resources utilization in chongqing, the dissertion argues that it should strengthen people ' s understanding to water resources sustainable utilization for chongqing ; reform the present water rexources management system and have a try on water affairs management system in chongqing ; make effort to construction of water resources " institutions and regulations ; realize demand management, constuct save - water model society ; according to actual condition, strength water utilization constrution, then realize the balance between water resources supply and demand ; according to the idea of " control resources, conduct flow ", control water pollution, realize sanitary generation ; control soil losses and protect water enviroment ; construc t the system of flood control and diaster prevent

    在對重慶市的自然地理情況和社會經濟情況作了介紹之後，還分析了重慶市水資源的基本特徵，目前重慶市的水資源利用還處在傳統的開發利用階段，水資源管理體制還存在許多弊端，水的法規制度建設也相對落後，水的供給還不能完全滿足需求，水質狀況沒有得到根本性的改善，水土流失還很嚴重，水旱災害發生的頻率比較高。針對重慶市水資源利用的現狀，本文提出：應加強對水資源持續利用的認識；改革目前重慶市的水管理體制，嘗試水務局管理體制，相應加強水的法規和制度建設，實現需水管理，建立節水型社會；根據實際情況，加強水利建設，實現水的供需平衡；依據「控源導流」的思想控制水污染，實現清潔生產；治理水土流失，保護水環境；建設防洪減災體系。
  6. E., the carrier frequency of a gaussian beam deviates from the resonant frequency of a fabry - perot etalon ), variations of the peak intensity, the position of the peak intensity and the dwdm systems, has received considerable attention. in this work, after taking into account the wavelength - depended reflectivity distribution profile of a fiber bragg grating, the oscillation wavelength # _ ( 1 ) of long external cavity fiber bragg grat

    與共振情況（即高斯光束的載波頻率與法布里一拍羅濾波器的諧振頻率一致）相比，非共振條件（即高斯光束的載波頻率與法布里一拍羅濾波器的諧振頻率存在偏差）一透射光束的峰值強度、峰值強度所對應的位置、以及光斑的大小隨入射角的變化都發生了顯著的改變。
  7. The method can be applied when the size of hull grillage beam and exciting frequencies cannot be easily changed

    該法適用於船體板架尺寸、激勵頻率不易改變的調頻情況。
  8. Authors suggest a practical method based on dynamic analysis of finite element for modifying natural frequencies of hull grillage beam, and its software is completed

    摘要提出一種基於有限元結構動力分析的船體板架固有頻率實用修改方法，並進行了軟體設計。
  9. Amendment 2 - measuring methods for properties of gyromagnetic materials intended for application at microwave frequencies

    修改件2 .用於微波頻率的旋磁材料性能的測量方法
  10. For short wavelengths, approaching the intermolecular distance, the velocity can vary with wavelength

    而對于波長短到接近分子間距離的波，其速度則會隨頻率而改變。
  11. Intermodulation suppression for fh ( frequency hopping ) receiver is designed by selecting the intermediate frequencies and changing group of filters, local oscillation ( lo ) frequency, bandwidth of lo frequency under the condition that receiver configuration, sensitivity, dynamic range, instantaneous bandwidth and precision of frequency measurement are fixed

    摘要針對跳頻接收機的體制和靈敏度、動態范圍、瞬時工作帶寬、測頻精度等設計參數，通過改變預選器組成、本振頻率和本振帶寬，分析接收通道的中頻選取原則，以實現跳頻接收機的互調抑制設計。
  12. Equation(4－198)yields a first approximation for the change in the natural frequency of vibration.

    方程（4198）給出了一級近似下的固有振動頻率的改變量。
  13. Compared with non - passerine, they appeared longer syllable length, higher basic frequency and more viable frequency ranges. though the amplitude modulation properties enhanced their vocal production, the type of syllable is still stable and less of variety. so the phrase consisted of syllables are comparatively few and changes of the tone are relatively less

    且表現出很強的頻率調制特性和特有的幅度調制特性，相對的音節時程比較長，基頻較高且頻率變化范圍較大，所特有的幅度調制特性更增加了其控聲的能力，但其音節的種類仍很單一，缺乏變化，由音節所組成的句型較少，音調變化幅度不大，因此，其叫聲質量盡管較非鳴禽有所改善，但相對鳴禽而言卻又遠遠不如。
  14. A new method for measuring the vibration of shadow mask without touch by detecting the light density with reflection type optical fiber sensor is presented. the measurement system based on the new method is designed to make the vibration measurement easier working, faster calculating, and get more precise results. it is an important measurement and analysis tool to improve the performance of shadow mask and display quality of cpt

    本文提出了基於單光纖光強度反射法的非接觸式微振動測量系統的原理，並設計製造了該測試系統，探索出了簡單方便可靠的測量方法，能夠準確客觀地反映蔭罩振動的各項參數（各振動模的振動頻率、振幅、衰減時間） ，實現了測試裝置的簡便化和測試過程的自動化，為cpt張緊式蔭罩系統的性能改進與顯示質量的提高提供了有效的測試分析手段。
  15. The research on carrier spectrum, modulation schemes and signal codes of plc networks has received much attention, while the mac protocol of plc networks is usually adopted from general - media computer networks

    目前國際上注重研究plc網路的載波頻率、調制方式、信號編碼等關鍵技術。而對于plc網路的mac協議，卻通常採用修改的常規計算機網路的mac協議。
  16. Ceviar living cells, which undergo devision 200 times faster than normal cells, contain a great variety of activated factors that stimulate fission of both organism and cells, and regeneration of cells, improving micro circulation and supply of nutrients, reducing melanin, and thus growing vitality and skin springiness, resulting from less wrinkles and shrinking pores

    魚子活細胞有旺盛的生命力，它的細胞分裂頻率比成熟細胞強200倍，內含多種活性因子，可啟動人體組織細胞的分裂和活化，刺激老化細胞更新再生，改善微循環，淡化黑色素，其高分子蛋白質有效的補充人體細胞和皮膚細胞的養份，增強機體活力和皮膚的彈性，修護鞏固基底層細胞組織達到去除皺紋、收緊毛孔、提升皮膚的顯著美容效果。
  17. The temperature effect which has been calculated is taken as " thermal load " forced on the body, then such thermal stress is settled as general elasticity mechanics question ; secondly, the thermal stress is taken as " surface force " forced on the body, and the new system stiffness is formed which include the extra stiffness matrix, then it changes the nature frequency of the structure

    首先，這篇論文介紹溫度場和熱應力場的有限元方法，建立了三維熱傳導模型計算有溫度場產生的熱應力，計算熱應力時運用了一種轉化思維：將溫度處理為「溫度載荷」 ，這樣就能用彈性力學問題的處理方法來求解熱應力。其次，將熱應力作為結構的「面內力」 ，而面內力產生附加的幾何剛度矩陣，改變了結構的剛度，影響了結構的固有頻率。
  18. This paper concerns studies on rhizobia in symbiosis with important legume soybean and peanut crops in china, following : 1 ) summarized bio - diversity of rhizobia, including indigeneous population, isolation frequency, strain type, distribution, and strain - host promiscuity and compatibility from large and small samples. 2 ) reviewed symbiont improvement in both sides of rhizobia and hosts, involving selection of effective rhizobial strains, evoluation and utilization of the host germplasm for symbiotic properties, and selection of the both sides for special characters. 3 ) discussed the subject on the rich symbiont germplasm resource in china and on further research being necessary to exploitation and utilization of the benificial germplasm

    針對我國主要豆科作物大豆和花生的研究成果，並結合本身研究工作內容， （ 1 ）總結了與宿主共生的根瘤菌生物學多樣性，包括大、小樣本的土著根瘤菌群體數量、分離頻率、類型與分佈及其菌株宿主共生混交性與親和性； （ 2 ）評述了根瘤菌宿主植物共生體雙邊固氮改良，包括優良菌株的選育、宿主品種資源共生特性的評價與利用及特異性狀的選擇； （ 3 ）討論了我國這一類共生體資源的豐富性以及有必要進一步加大力度研究有益資源的開發和利用的問題。
  19. Abstract : this paper concerns studies on rhizobia in symbiosis with important legume soybean and peanut crops in china, following : 1 ) summarized bio - diversity of rhizobia, including indigeneous population, isolation frequency, strain type, distribution, and strain - host promiscuity and compatibility from large and small samples. 2 ) reviewed symbiont improvement in both sides of rhizobia and hosts, involving selection of effective rhizobial strains, evoluation and utilization of the host germplasm for symbiotic properties, and selection of the both sides for special characters. 3 ) discussed the subject on the rich symbiont germplasm resource in china and on further research being necessary to exploitation and utilization of the benificial germplasm

    文摘:針對我國主要豆科作物大豆和花生的研究成果，並結合本身研究工作內容， （ 1 ）總結了與宿主共生的根瘤菌生物學多樣性，包括大、小樣本的土著根瘤菌群體數量、分離頻率、類型與分佈及其菌株宿主共生混交性與親和性； （ 2 ）評述了根瘤菌宿主植物共生體雙邊固氮改良，包括優良菌株的選育、宿主品種資源共生特性的評價與利用及特異性狀的選擇； （ 3 ）討論了我國這一類共生體資源的豐富性以及有必要進一步加大力度研究有益資源的開發和利用的問題。
  20. Wavelet transform, which has a multi - resolution analytic character, is a time - scale ( time - frequency ) analytic method of information. moreover, as both of its time - window and frequency - window can be changed it processes the ability of expressing local characters of information in time - frequency domain

    小波變換是一種信號的時間尺度（時間頻率）分析方法，它具有多解析度分析的特點，而且在時頻兩域都具有表徵信號局部特徵的能力，是一種窗口大小固定不變但其形狀可改變，時間窗和頻率窗都可以改變的時頻局部化分析方法。
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