高頻級 的英文怎麼說

中文拼音 [gāobīnjí]
高頻級 英文
high-frequency stage
  • 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
  • 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...
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 高頻 : high frequency
  1. Furthermore, with the fourier series technique, the disturbance is discomposed into predominant mode and high frequency harmonics, and the nonlinear stability of the nonparallel boundary layer is studied

    採用fourier級數的方法把擾動波分解為基本模態和高頻諧波模態，導出非平行非線性拋物化穩定性方程。
  2. With the fourier series technique, the disturbance is discomposed into predominant mode and high frequency harmonics. the nonlinear stability of three - dimensional disturbances for the blasius boundary layers is studied

    藉助fourier級數的方法將擾動波分解為基本模態和高頻模態，研究了三維擾動的非線性邊界層穩定性問題。
  3. A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter. each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a dc / ac inverting bridge. the control strategy of voltage mode pwm forwardback is adopted by the former, and the control strategy of three - state discrete pulse modulation ( dpm ) hystersis current is adopted by the later

    每個獨立的航空靜止變流器採用占空比擴展有源箝位正激式高頻脈沖直流環節電路拓撲，由占空比擴展有源箝位正激式高頻脈沖直流環節電路與dc ac逆變橋級聯而成，前級採用電壓型pwm前饋控制技術，后級採用三態dpm電流滯環控制技術。
  4. Semiconductor discrete device. detail specification for npn silicon high - frequency low - power transistor for type 3dg130gp gt and gct classes

    半導體分立器件gp gt和gct級3dg130型npn硅高頻小功率晶體管.詳細規范
  5. The second, at the high frequency primary coil, when switch turn on with control signal ( the spwm pulse is modulated ), in the positive or negative semi - period of low frequency modulation signal, transformer coil with same direction voltage. the magnetic flux of transformer core will increase step by step. at the end, it leads to magnetic flux saturation

    二、在高頻變壓器原邊，當開關管接收控制信號脈沖列（經調制的spwm波列）導通時，在低頻調制信號的正半周或負半周內，施加在變壓器繞組上的是同一方向的電壓，變壓器磁芯中的磁通可能將級進地逐漸增加，導致磁芯飽和，造成磁偏或單向磁化，導致低頻電信號放大失真或由於很大的磁化電流而無法正常工作。
  6. In the two - photon resonance case, part of the input pulse energy is transformed into higher and lower frequency components through amplified spontaneous emission and four - wave mixing, and the medium shows strong optical power limiting effect

    在雙光子共振情況下，即入射脈沖頻率等於1 、 3能級之間的共振頻率的一半，由於介質中放大的自發輻射和四波混頻的作用，部分入射脈沖能量轉化為高頻和低頻電場成分的能量，分子介質表現出了很強的光功率限幅特性。
  7. The qiantang basin, having the most complete and extensive marine sedimentary strata during jurassic, is the second larger mesozoic marine sedimentary basin. although many achievements are obtained in recent years, the research are still only involved in second - or third - order of mesozoic sequence. on the base of sedimentation facies analysis of matuo formation, high frequency sequence are studied

    藏北羌塘盆地地處青藏高原腹部，是我國中生代第二大海相沉積盆地，侏羅紀是羌塘盆地發育最全、分佈最廣泛的海相沉積層系近年來，羌塘盆地在層序地層方面的研究已取得不少成果，但其層序地層研究多涉及中生代二級或三級層序，至於高頻層序，尚未進行詳細的研究。
  8. So this part is dealt with separately. dcpm method is employed to improve the quality of image coding with making full of the relativity of the wavelet coefficients. according to the different importance degree and vision character of the high frequency wavelet coefficients, different thresholds are applied to remove small coefficients ; then mannos module are applied to remove the visual redundancy ; in order to produce more zero - tree, horizontal and vertical wavelet coefficients are transformed accordingly to improve the compression ratio

    對于小波變換后的小波系數的高頻部分，根據其分佈特性和人眼的視覺特性，採用視覺模型對零樹量化過程的閾值進行修正，有效地去除視覺冗餘；對各高頻子圖採用多級樹集合分割的零樹編碼方法，有效地利用系數編碼剩餘符號，進一步提高壓縮比。
  9. How the key device in the circuit affects the whole performance is analyzed in experiment. during the design, high frequency simulation tools, such as advanced design system ( ads ) 2004a of agilent corporation and serenade v8. 7 of ansoft corporation,

    設計中分別採用了agilent公司的高級設計系統advanceddesignsystem2004a （ ads ）和ansoft公司高頻模擬設計軟體serenadev8 . 7對振蕩器電路進行模擬和調試。
  10. On the way to this goal, china will be challenged by global competition for capital and resources and its ability to participate in international organizations such as the g7. he also warned that china should put more efforts into the protection of its culture and education while integrating with the global economy

    與此同時，在全國公交市場蓬勃發展的契機下，蘇州金的多款公交新品入選國家第一批城市客車高等級車型目錄，今年剛一推出就在廣州深圳北京蘇州等各地捷報頻傳。
  11. Purpose : transceiver final amplifier application, hf transceiver application

    用途:用於無線收發機的末級放大和高頻收發。
  12. The author utilizes catastrophe theory to explain the high magnitude mechanism by non - linear resonance model. 5. in order to know the stress distributing of river, the author simulates the field by finite element analysis

    為了合理解釋水庫蓄水后，地震頻度增大、地震震級增大的現象，本文將非線性共振突變理論引入，對高震級水庫地震的誘發機理進行了新的探索。
  13. Long life grade, low e. s. r., high ripple current rating and outstandingly good high frequency impedance, tol

    長壽級，低esr ，高漣波電流級和傑出不錯的高頻阻抗特性
  14. ( 2 ) college students " ordinary frequency of email usage is about once time per week, and the email usage frequency of high grades such as junior and senior is markedly higher than the low grade as freshmen and sophomore. almost of high frequency of email usage belongs to the male students. there is no distinctive difference of email usage of majors

    （ 2 ）大學生收發email的頻率為平均每周一次左右；高年級大學生（大三大四）顯著比低年級大學生（大一大二）用得多；高頻率使用email的大學生絕大多數是男生；使用email不存在專業差異。
  15. A novel cycloconverter - rype three - phase hf link inverter topology for soft - switching based on phase - shifted full - bridge mode is proposed, whose main advantages are as follows : under the conditions of d < i < and overlap - d, the switches of the leading leg are turned on at zvs and the switches of the lagging leg are turned off at zcs and all switches of the cycloconverter circuit are commutated in the overlapping mode in the interval of zero voltage, which makes the circuit realize soft switching to the utmost extent and reliably solve the problem of peak voltage caused by the storing energy of leakage inductance of hf transformer

    論文提出一種新型移相全橋軟開關周波變流型三相高頻鏈逆變器，電路的主要優點是：前級移相全橋的移相角控制在_ d _ i和_ （ overlap ） - _ d條件下，超前橋臂零電壓開通，滯后橋臂零電流關斷，並使周波變流器所有開關在零電壓期間重疊換相，使整機開關最大程度地實現了軟開關，並可靠解決了高頻變壓器漏感儲能引起的電壓尖峰問題。
  16. The application practice of derrick high frequency vibrating fine screens in mineral classification and dewatering

    德瑞克高頻振動細篩在礦物分級和脫水中的應用
  17. Due to the complexity of the structure and control of cycloconverter - type three - phase hf link inverter for soft - switching based on phase - shift - controlled full - bridge mode, a simple and optimized vvvf control strategy is proposed. this control strategy includes : produced pwm by space voltage vector ( svm ) and equivalent carrier frequency fe = 1 / te are introduced into the pdm control of the cycloconverter ; softened equivalent pwm wave is generated at the notches of hf voltage pulses ; the harmonious control between regulating pulse width by phase - shifted angle and regulating voltage of equivalent pwm is to minimize the harmonics content of output voltage of the inverter

    西安理工大學博士學位論文針對這種前級移相全橋軟開關周波變流型三相高頻鏈逆變器結構和控制的復雜性，提出了一種實現簡單而整體優化的vvvf控制策略:將空間電壓矢量產生p姍的方法svm和等效載波頻率fe = 1 / te引入到周波變流器的pdm控制;按高頻電壓脈沖前後沿軟化等效p翎波;用移相調節高頻脈沖寬度和等效p姍調壓協調控制逆變器輸出電壓，在滿足輸出電壓條件下使諧波最小。
  18. In this paper, through modeling and analyzing the non - continuities in the rf structures of twt, scattering parameter s11 is derived to represent the peak - peak values of the ripples of gain and phase - shift in traveling wave tubes, providing with some instructions for the controlling of the uniformity of gain and phase - shift in twts

    本文通過對具有高頻不連續性的行波管進行建模分析，用表徵不連續性的反射系數的幅度給出了行波管增益和相移峰峰值的量級，對控制相位一致性行波管的不連續性提供了依據。
  19. Rankings of all types randomly blink into appearance : a world heroes ranking, ordered according to power brought by level and equipment ; a defender of the realm ranking, ordered by the number of enemies killed ; a kingdom power ranking, ordered by countries ' assets and battle record. . like the naobaijin commercials that pop up on tv all the time, the real - time changes in these standings are like high - frequency blasts to the ambitious heroes, reminding them that they cannot rest for an instant in this cruel world

    各式各樣的排行榜隨時閃現，世界英雄排行榜? ?根據級別和裝備帶來的威力排序；護國英雄排行榜? ?根據殺死敵國人的數量排序；國家實力排行榜? ?根據國家物資和國戰勝負記錄排序… …就像電視里隨時出現的腦白金廣告，實時變動的排名對野心勃勃的英雄們高頻率轟炸，提醒他們在這個嚴酷的世界里一刻也不能放鬆。
  20. From the view point of the whole topologies of current mode hfl inverters, two topologies of half - bridge and push - pull current mode hfl inverters are proposed, which are composed of four power switches. hfl inverters in discontinuous current mode ( dcm ) are extended to those in continuous current mode ( ccm )

    從完善電路拓撲和降低成本的角度出發，本文提出了兩種結構的電流源高頻鏈逆變電路，它們分別是由四個功率管組成的半橋和推挽雙向電流源高頻鏈單級逆變電路，並將工作在電感電流斷續模式的逆變電路擴展到電感電流連續模式。
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