frd 中文意思是什麼

frd 解釋
彩麗
  1. There are 12 federal reserve districts ( frd ) in us with one federal reserve bank per district. to coordinate 12 frd ' s business, federal reserve board ( frb ) was established in us capital - washington

    在美國有12個聯邦儲備區，每個區都設有一個聯邦儲備銀行。為協調這12個聯儲銀行的業務活動，在首都華盛頓建立了聯邦儲備委員會。
  2. Special - shaped column frame with ved, frd and f - ved are analyzed under minute earthquake and disastrous earthquake, which are compared to that of r. c. special - shaped column frame. the results indicates that the new system with ved, frd and f - ved can effectively reduced the seismic responses than special - shaped column frame ; and that it is more obvious for r. c

    最後本文對設置ved 、 frd和f - ved的異型柱框架結構在水平地震作用下的反應進行了時程分析，通過與純異型柱框架結構在同一地震作用下的時程曲線進行比較，得出以下結論： 1 ）採用設置ved 、 frd和f - ved的異型柱框架消能減震結構體系可以有效減小地震反應； 2 ）設置f - ved的異型柱框架結構的減震效果比設置ved或frd更明顯。
  3. The results of test and theoretical calculation indicate that the friction device does not slide under minute earthquake, thus the control effort of f - ved corresponds with ved, and the action of frd is the same as pure brace. when disastrous earthquake occurs, the viscoelastic material reaches its shear limits and the friction device begins to slide, so the control effort of f - ved is the best

    試驗結果和理論計算結果表明，在多遇地震下摩擦機構不起滑，粘彈性-摩擦阻尼器的減振效果和純粘彈性阻尼器相當，而摩擦阻尼器的作用相當于純支撐；在罕遇地震下粘彈性材料達到剪切極限，摩擦機構起滑，故粘彈性-摩擦阻尼器的減振效果最好。
  4. With the network of fault recorded data accomplished, the management and analysis of frd are very necessary

    隨著故障錄波信息聯網的完成，對錄波數據的管理和錄波數據的分析顯得非常必要。
  5. And the impact of every parameters of f - ved element, stiffness coefficient and damper coefficient of ved element, normal stiffness, tangent stiffness and sliding friction of frd element and the cross - section area of the brace on the capability of dissipating vibration energy is computed and analyzed

    並對f - ved單元中ved單元的剛度系數、阻尼系數、 frd的法向剛度、切向剛度、滑動摩擦力及支撐橫截面面積等參數對單元阻尼效果的影響進行了分析研究。
  6. Power fast recovery diode, which is abbreviated to frd, is one of the key devices in modern power electronic technology. in the power electronic circuits, frd is usually parallel connected with three - end power devices as their freewheeling diode

    高壓功率快恢復二極體（以下簡稱frd ）廣泛地應用於電力電子電路中，作為續流二極體與三端功率器件並聯使用，是現代電力電子技術中的關鍵器件。
  7. Firstly, the dynamical performance of friction damper ( frd ) and viscoelactic damper ( ved ) is tested in this paper. the work, which gets the rules that the two dampers " hysteretic curve and performance - parameters change follows the changing of excitement, lays the foundation for designing new kind of edd

    論文首先進行了摩擦阻尼器和粘彈性阻尼器的動力性能試驗，獲得了兩種阻尼器的滯回曲線和性能參數隨激勵性質變化的規律，為進一步開發新型的耗能阻尼器提供了基礎。
  8. Harmonic components of the input current in method 2 is lesser than method 1, neglecting the losses and switching effects of the converter. the decreation of the harmonic components is not apparent, but different between method 2 and method 1, due to the influence of switch losses of the igbt, which is consisted of two igbt and two frd

    當模擬模型中的雙向開關由兩個igbt和兩個快恢二極體組成時，由於igbt的開關損耗等因素對輸入電流的影響，在模擬得到的輸入電流頻譜圖中，諧波成分的減小不是很明顯，但調制策略方式2和方式1的諧波成分仍有所不同。
  9. The frd is designed as a new piston - type constant - friction - force damper, which dissipates energy efficiently and can be used in practical project expediently

    本文設計加工的活塞式常摩擦力阻尼器耗能明顯，且能方便地運用於實際工程。
  10. Then, the factors which cause the r. c. special - shaped column frame to strongly destroy are given. the finite element modals of ved, frd and f - ved are established whose hysteretic curves are obtained by analyzing their dynamical performance

    本文建立了ved 、 frd和f - ved的有限元模型，對三種模型進行了動力特性分析，得到了各自的力-位移滯回曲線。
  11. And tag algorithm is given here to implement tag model ; ( 2 ) based on above work, this paper also provides frd algorithm by using tag algorithm. frd algorithm uses semi - join program, in order to find a full reducer

    本文正是基於這樣的出發點，提出在數據庫中使用數據壓縮技術，從而減少通訊代價； （ 2 ）在數據壓縮的研究工作基礎上，提出frd演算法，嵌入了tag演算法。
  12. And the local lifetime controlling technology gains more attention because it ’ s advantage of axial local diffusion. to improve the frd ’ s general performance, this study proposal a novel technology combing the local pt diffusion and electronic irradiation

    在利用壽命控制技術減小frd反向恢復時間的研究中，局域壽命控制技術以其良好的軸向局域摻雜優勢（相對于整體壽命控制技術）備受關注。
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