有限頻率范圍 的英文怎麼說

中文拼音 [yǒuxiànbīnlǜfànwéi]
有限頻率范圍 英文
limited frequency range
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 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
  • 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
  • 范 : 名詞1 [書面語] （模子） pattern; mould; matrix 2 （模範; 榜樣） model; example 3 （范圍） boundar...
  • 圍 : Ⅰ動詞1 （四周攔擋起來 使裡外不通; 環繞） enclose; surround; corral 2 （繞; 裹） wrap Ⅱ名詞1 （四...
  • 有限 : limited; restricted; finite; a little; not much
  • 頻率 : frequency; rate
  • 范圍 : scope; limits; extent; boundary; confines; range; range dimension; spectrum
  1. The brief name ring, measures a device right high, inside, low and each segment scope for ability for even emersion of signal, pointing lowestly validity returning putting the frequency with tallestly validity returning put of the frequencying. request towards device rang contain both side, on is a scoping as far as possible breadth, can be namely frequency bottom that replay the is as far as possible low, and the upper limit is as far as possible high ; two is a frequency scope the inside is at all point to respond to as far as possible flat, avoided to appeared the big motion

    簡稱頻響，衡量一件器材對高中低各頻段信號均勻再現的能力，指最低有效回放頻率與最高有效回放頻率之間的范圍。對器材頻響的要求有兩方面，一是范圍盡量寬，即能夠重播的頻率下限盡量低，上限盡量高二是頻率范圍內各點的響應盡量平坦，避免出現過大的波動。
  2. B ) equivalent circuit method and finite element analysis ( fea ) to compute the static force are presented, the results obtained by each method are compared one with the other. c ) the results of dynamic simulation by means of the software, ansoft show the hlfm " s characteristics when the motor works in the special frequency and single stroke and the conditions used for position control. d ) the measured static thrust - displacement characteristics and the dynamic characteristics during starting show good correlation with the calculated results

    在設計並製作了實驗樣機的基礎上所做的研究內容包括； （ 1 ）分別用能量法和麥克斯韋張量法推導電磁力的計算公式，並討論他們的不同應用范圍； （ 2 ）分別用等效磁路法和有限元法作直線力電機的靜特性分析，並比較分析它們的計算結果； （ 3 ）用有限元模擬軟體做直線力電機動態特性的模擬，分別分析直線力電機的頻率特性、動子開合閘特性和開環位置控制的工作特性； （ 4 ）做直線力電機的靜推力?位移特性實驗和動子開合閘的動態實驗，並將實驗結果與計算結果進行對比，實驗驗證了計算模型及計算方法的正確性。
  3. The chip is mainly applied to the portable electronic products with the following features : 2. 7v to 5. 5v input voltage range ; the 1mhz fixed frequency ; - 40 to + 85 operating temperature ; two digital inputs control on / off and select amongst three levels of brightness ; thermal shutdown and under voltage shutdown protection, low 0. 1 a shutdown current ; soft - start limits inrush current

    該晶元主要應用於便攜式電子產品，其輸入電壓范圍為2 . 7 5 . 5v ，工作頻率為固定的1mhz ，可大幅度降低輸入紋波和emi輻射，工作溫度范圍為- 40 + 85 ，可使用外部使能控制信號調節led亮度及控制晶元關斷與否，具有過溫保護和輸入欠壓關斷保護功能，完全關斷模式下關斷電流可低至0 . 1 a ，具有軟啟動功能以限制啟動時的浪涌電流。
  4. A. although at each depot radio power is limited to covering only the depot area and the range of the antenna is restricted to the depot, radio signals often carry to other depots. as all depots use the same frequencies, operations are sometimes affected

    1 .機廠部分雖然要求盡量把功率限制在該處機廠機廠之范圍，且天線之輻射范圍也盡量局限在該機廠，唯不該有之訊號總會傳送至別處機廠，由於機廠都共用相同頻道，因此會造成操作上之困擾。
  5. From theoretical analysis, we know the existing demodulation methods have limitations as following : one is that the subtraction of the two signals frequencies will display as the result of demodulation when we demodulate two time - domain adding signals without modulating information ( fault information ) ; the other one is that aliasing phenomenon will occur as a result of getting absolute value, detection or square in the process of generalized demodulation analysis, such phenomenon will result in some superfluous frequency composition on the frequency spectrum, which will puzzle the detec tion of mechanical vibration. if the sampling frequency is selected from a suitable range, the aliasing phenomenon will be avoided ; the last one is that aliasing frequencies will be produced in zoom demodulation analysis because this algorithm cannot employ digital low - pass filtering to avert the folding frequencies of higher harmonics in the process of zoom sub - sampling

    現有的解調分析方法存在以下三種局限性：將不包括調制信息（故障信息）的兩時域相加信號，也以其頻率之差作為解調信號而解出；廣義檢波濾波解調分析中，由於取絕對值、檢波或平方過程可能產生混頻效應，在解調譜中表現為無法分析的頻率成分，並由此推導出避免這種混頻現象的采樣頻率的選取范圍，從根本上避免此類誤診斷的產生；幾種細化解調分析新演算法中，因為無法在細化分析的選抽時進行數字低通濾波，有可能會出現調制頻率的高次諧波成分發生頻率混疊而反折到低頻部分的現象。
  6. Is a vesa standard data format that contains basic information about a monitor and its capabilities, including vendor information, maximum image size, color characteristics, factory pre - set timings, frequency range limits, and character strings for the monitor name and serial number

    是一種vesa標準數據格式，其中包含有關監視器及其性能的參數，包括供應商信息、最大圖像大小、顏色設置、廠商預設置、頻率范圍的限制以及顯示器名和序列號的字元串。
  7. To accommodate more users with limited spectrum, the radius of new cellular will be much smaller, the factor of spectrum reuse will be more tight

    為了在有限頻譜范圍內滿足更多的用戶需要，通信系統的蜂窩半徑越來越小，頻率復用密度越來越高。
  8. Further more, a finite element analysis of flywheel rotor was made to increase the security of the flywheel ' s test, 9 modes frequency were taken out according to the rotating speed of the flywheel, the results can act as the theory base for the structure design and tests of the flywheel

    為了增加飛輪實驗的安全性，本文利用有限單元法對飛輪轉子作了模態分析，抽取了飛輪工作轉速范圍內的9階模態頻率，可作為飛輪結構設計和飛輪實驗的理論基礎。
  9. The low frequency noise of the ring - stiffened cylinder with double shell is depressed by increasing structure stiffness, the numerical simulation is adopted to evaluate the acoustics performance, find that the vibration and acoustic radiation of the structure could be depressed by increasing the structure stiffness within the discontinuous range of the low frequency

    摘要通過增大雙層加肋圓柱殼的剛度降低低頻噪聲，使用數值模擬技術，評價結構的聲學性能，發現增大雙層加肋圓柱殼結構剛度，可在低頻段有限頻率范圍降低結構的振動與聲輻射。
  10. Abstract : to against the fact of the commercial available white noise generators are very expensive which is not good for general operations, a simple and effective limited band white noise generator is design. the generator is using the feature of dual polarity transistor, i. e., the power spectrurn density of particulate noise is not related to frequency in very wide band and close to white noise. the concrete circuit is also given

    文摘:針對市售白噪聲發生器價格昂貴，不利於一般場合使用的問題，介紹利用雙極性晶體管散粒噪聲功率譜密度在非常寬的范圍內與頻率無關，屬白噪聲這一特性，設計了一種簡捷、有效的限帶白噪聲發生器，並給出了具體電路。
  11. In view of that the plane wave theory is suitable only in lower frequency range, the three - dimensional finite element method is applied to analyze the acoustic characteristics of air cleaner in the present study for broadening the frequency range

    由於一維平面波理論只適于低頻分析，為了擴大分析的頻率范圍，採用了三維有限元數值方法分析空氣濾清器的聲學特性。
  12. Acoustic properties of space inside a railcar are analyzed based fem when frequencies are lower : 1 acoustic modal inside the railcar is calculated whether coupled or uncoupled with shell of railcar, 2 acoustic field inside the railcar is calculated when a force is given

    針對某型鐵路客車應用有限無法在較低的頻率范圍內對客車車內的聲學特性進行了研究分析，得出了客車車內流體自身的模態和液體與車體耦合后車內流體的模態，並在給定激勵下計算了客車車廂內部的聲場。
  13. The surface - wave theory was firstly provided by rayleigh, which can be used in even medium and many other learners developed rayleigh ' s theory and provided another theory which can be used in layered medium

    瞬態面波法的理論基礎是英國學者瑞利提出的半無限彈性均勻介質中的瑞利面波理論及其後來發展起來的半無限彈性層狀介質中的頻散理論，因其具有同時可以大范圍檢測，精度好、效率高等優點，在無損檢測方面有很好的前景。
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