指定頻率 的英文怎麼說

中文拼音 [zhǐdìngbīnlǜ]
指定頻率 英文
assigned frequency
  • 指 : 指構詞成分。
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 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
  • 指定 : appoint; assign; allocate; appointment; destine; designation; assigning: （通過法律手續） 指定把...
  • 頻率 : frequency; rate
  1. The signal we named it fundamental wave ; according to the fundamental wave, coefficients of the fundamental wave can be lined in a sequence. when the unique of the dissolve of the fundamental wave can be confirmed, the sequence of the coefficients can be regarded as one of representation forms of the signal itself ; theory of dissolvable signal shows that when order of the matrix of fundamental wave sampling equals to number of fundamental waves, the sequence of the sampling values from sampling points must be matched one by one with the sequence of the coefficients of fundamental waves. the sampling composed by sequences of the sampling values must be full sampling ; the relevant deductions of the theory of dissolvable signal shows that when sampling the signal, sampling frequency must be lager than the ratio of the number of fundamental waves to the occupation time of the fundamental waves ; to band - limited signals, when the fundamental wave is a sine signal, the results from the relevant deductions of theory of dissolvable signal is coherent to the classic sampling theory

    本文通過分析認為，當信號集中的任一信號可表示為一系列已知信號的線性代數和時，信號集便構成可分解信號集，已知信號稱為基波信號；對可分解信號而言，基波系數構成一序列，當對指定的基波信號集分解唯一確定時，系數序列本身便是信號的一個表示；可分解信號采樣定理指出當基波樣值矩陣的秩等於基波數時，則由采樣點處的采樣樣構成的樣值序列必與基波系數序列一一對應，從而由該樣值序列構成的采樣必為完全采樣；可分解信號采樣定理中的推論指出，對信號集進行采樣，采樣頻率必須大於其信號分解的基波數與其對應時長之比；對有限帶寬信號，若基波信號為正弦信號時，由可分解信號采樣定理推論給出的結論與經典采樣定理一致。
  2. The prestress and harmonic response analysis method is used to study the unbalance response of a turbo - generator rotor and the displacement - frequency curve at a point of the rotor as well as the sress and strain at an appointed frequency are provided

    摘要利用預應力及諧響應分析的方法研究了轉子的不平衡響應，得出在某頻率范圍內，轉子在指定點處位移對頻率的響應曲線以及在指定頻率處，整個轉子上的應力、應變響應的影響等。
  3. In current practice, array parameters are usually calculated according to the strength and types of interference wave, frequency characteristics, and azimuth, whereas the effect of array center is often ignored, and simply view the graphic center as array center

    指出現在施工設計中，組合參數的確定主要圍繞干擾波、頻率特性和方位角等方面進行論證，忽視了其組合中心的確定。
  4. The second parameter specifies the rate of the pixel clock in megahertz

    第2個參數指定的是像素時鐘頻率（單位為mhz ） 。
  5. As an important target of frequency synthesizer design, phase noise determines system ’ s sensitivity and selectivity whose design is being the emphasis as well as nodus at all times

    它作為頻率合成器的重要指標，決定了系統的靈敏度和選擇性能，一直是設計者的難點和重點。
  6. A dynamical system is built which is satisfied to lyapunov function whose energy function is penalty function in augmented lagrange multiplier method. the dynamical system is global stable, and its stable solution is the optimization solution of sub - problem in augmented lagrange multiplier method according to lasalle invariance principle. finally a complete optimization algorithm is developed

    針對這種工業過程，本文基於一個lqr的性能指標（本性能指標和衰減系數和自然頻率密切相關） ，提出應用本文提出的mmlaax優化演算法，對不確定工業過程進行魯棒pto控制器的設計，取得令人滿意的效果。
  7. Empty affect refers to the frequency at empty electrical motors from lock - in normal circumstances to activate the pulse frequency

    空載牽入頻率是指步進電機在空載情況下能夠從鎖定狀態正常啟動的脈沖頻率。
  8. The catv charge and control system is mainly composed of the management software 、 the header data modulator and the terminal charge and control equipment. i am responsible for design catv charge and control equipment and test system. the header data modulator is used to encrypt the control single from computer and transmit it into the appointed frequency. the terminal charge and control equipment demodulate out the control single from data modulator and transmit it to the addressing control part, where the demodulated fsk single is received and well - handled by the cpu unit, decode the unauthorized signals and deliver it to the shut point, shut point make use of capability of wideband anf characteristic of shut, then the signal of illegal customer will be turn off and vice versa, the legal customer can receive the normal signal

    前端數據調制器完成對計算機輸出的控制信號加密處理，將指令碼載送到一指定頻率點。終端收費控制器解調出控制信號，送至單片機尋址控制部分。單片機尋址控制部分接收經fsk數據解調器送來的信號，送入cpu單元后，解出不授權信號，然後向關斷部分送入信號，關斷部分利用pin二極體的寬帶工作能力以及關斷特性，實現對非授權用戶或者非法用戶的信號關斷，使之不能正常收視，繳費用戶進行開通正常收視，達到控制用戶通道的管理。
  9. Undershoot undershoot refers to the amount by which voltage or frequency drops below the nominal value as the voltage regulator or governor responds to changes in load

    下超調下超調指電壓調整器或控制器在應對負荷變化時，電壓或頻率低於額定的量。
  10. Ac alternating current ( ac ) is electric current that alternates between a positive maximum value and a negative maximum value at a characteristic frequency, usually 50 or 60 cycles per second ( hertz )

    交流交流是指電流在正負最大值之間以特定的頻率變動，通常頻率為50或60赫茲。
  11. Relationship between the gyro ’ s bandwidth and sensitivity and the resonant frequency differential ratio is derived through frequency analysis. the bandwidth of the gyro increases as the resonant frequency differential ratio increases ; but the sensitivity decreases as the resonant frequency differential ratio increases

    增大驅動軸和敏感軸之間諧振頻率的頻差，可以增加微陀螺的帶寬，但是降低了微陀螺的靈敏度，這為設計石英音叉結構參數時，確定驅動軸和敏感軸諧振頻率提供了指導依據。
  12. I turns out to be that the position and degree of damage can not be well detected only by eigenfrequency, while only can detect if the damage has appeared. however, severe damage can be diagnosed if the modal shape and natural period are used

    利用以上指標對試驗構件的損傷進行識別與定位，研究結果表明，僅憑獲取的固有頻率不能準確判斷結構構件的損傷狀態及損傷位置，只能初步判斷結構中是否出現損傷。
  13. A cicuit or device whose purpose is to control electrical energy at a given frequ - ency or over a range of frequencies, groups of passive components are commonly used to construct many types of filters, these passive components include resistors, cap - acitors and inductors

    指一電路或裝置其功能是在一特定頻率或頻帶下控制電能，不同種類的被動元件常被用來組成不同的濾波器，這些被動元件包含電阻，電容及電感。
  14. In pursuing their agendas for reducing market uncertainty, or simple for locking trading partners into trading relationships with them, these powerful players have unilaterally imposed their own in - house computer systems or information handling practices upon their trading partners, extending their own hardware systems into their suppliers ' premises, dictating product and inventory coding according to their own established in - house information systems, and dictating the type and frequency of data to be exchanged

    議程的進行是為了要減少市場的不確定性，或是單純的為了綁住貿易伴與他們有著貿易的關系，這些強勢的一方已經單方面的利用本身的電腦系統或是資訊管理運用在他們的貿易伴上，擴展他們本身的硬體系統進入他們的供應者經營場所，根據他們本身建立的資訊系統指定產品和存貨條碼，以及指定資料的形式和頻率進行交易。
  15. The precipitation frequencies is analysed according to 1956 ~ 2000 years of rainfall record series in baoding area. the features of distribution of rainfall are detailed evaluated. firstly, the distribution of monthly precipitation is not even. for instance. the annual rainfall amount is about 548mm in whole year, about 80 % of them in summer season. secondly, yearly variation of rainfall is greater. thirdly, the abundant years usually are followed by short years, but the important changes have taken place in the last decades. before 70 ' s the abundant years took the dominant position, from the 70 ' s to the middle of 80 ' s the short years took place more frequently than ever. after the later of 80 ' s, the short years hold the main position. the above knowledge is instructive for guiding the rainwater resources effective utilization

    本文利用1956 2000年保定市的長系列降雨資料，對保定市降水量進行了頻率分析、年內變化分析和多年變化分析，明確了保定市降水量年內、年際間的變化情況：保定市降水量年內分配不均，汛期（ 6 - 9月）占年降水量的81 。保定市降水量年際間變化大，豐水年和枯水年交替發生， 70年代以前以豐水年段為主； 70年代到80年代前期降水量豐枯交替頻繁，總的接近於枯水年段； 80年代後期至今以枯水年段為主。這種降水分佈規律對農業生產雨水資源的高效利用具有重要的指導意義。
  16. Plays the sound of a beep of a specified frequency and duration through the console speaker

    通過控制臺揚聲器播放具有指定頻率和持續時間的提示音。
  17. However, when one may optimize structure with a specially designated frequency, the ones lower than the frequency should be avoided to save time and to improve computing precision

    對于指定頻率的動力拓撲優化問題，如果能夠避免求解指定頻率以前的頻率而直接對指定頻率進行計算，將無疑可以提高計算效率和計算精度。
  18. Based on apdl, the design language of finite element analysis software ansys, and visual c + +, the software on acoustics design of underwater cylindrical shell structure is developed. when input parameter of the cylindrical shell in the interface redeveloped in this paper, the software execute the batch file of apdl in the vc process to establish the finite element modal and carry out the analysis, the analysis result and the vibration mode can also be displayed. furthermore, the software has been developed to process the acoustics optimization design of the finite cylindrical shell with stiffener in appointed frequency range

    本論文從便於工程實際應用出發，對使用有限元分析軟體進行二次開發以方便結構振動分析及改進結構設計的方法和過程進行了研究，在此基礎上對水下航行器圓柱殼體的結構聲學特性進行了分析，在指定頻率區間，對結構以振動輻射聲功率級為目標函數進行了部分參數的結構優化設計，與此同時，為了方便有限元分析軟體的使用和簡化設計過程中大量重復的工作，利用ansys提供的參數化設計語言apdl （ ansysparametricdesignlanguage ）結合vc對有限元軟體ansys進行了二次開發，形成了一體化的水下圓柱殼體結構聲學設計軟體。
  19. Inductive voltage dividers ( ivd s ) will be calibrated by comparison with the laboratory s 8 - dial ivd, normally at specific frequencies of 400 hz, 1 khz and 10 khz with an input test voltage of 25 v. the calibration normally involve measurement of voltage ratio ( magnitude ) of the output voltage related to the input voltage of the ivd

    感應分壓器一般按400hz 、 1khz及10khz等指定頻率及25v的輸入測試電壓，透過與本所的八刻盤感應分壓器對比而進行校正。校正工作一般包括測量該感應分壓器輸入電壓與相對輸出電壓的電壓比（幅值） 。
  20. At present, our country power quality national standard was chiefly stipulated five quotas : frequency, harmonic and voltage deviation, three - phase unbalance and the voltage fluctuation and flicker

    目前我國電能質量國家標準主要規定了五個指標：頻率、諧波、電壓偏差、三相不平衡及電壓波動與閃變。
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