frequency curve 【統計學】頻數曲線。
【統計學】頻數曲線。 “frequency“ 中文翻譯： n. 1.屢次，頻仍，頻繁。 2.(脈搏等的)次數，出現 ...“curve“ 中文翻譯： n. 1.曲線；彎曲；彎曲物。 2.曲線規 (＝Fren ...“accumulative frequency curve“ 中文翻譯： 累加次數曲線圖“altimetric frequency curve“ 中文翻譯： 測高頻率曲線“amplitude versus frequency curve“ 中文翻譯： 振幅頻率特性曲線“amplitude-versus-frequency curve“ 中文翻譯： 振幅頻率特性曲線“common frequency curve“ 中文翻譯： 一般頻率曲線“cumulative frequency curve“ 中文翻譯： 累積次數曲線; 累積頻率曲線; 累積頻數曲線；穹形線; 累計頻數曲線“curve of frequency distribution“ 中文翻譯： 頻率分布曲線“depth-duration-frequency curve“ 中文翻譯： 深時頻曲線“differential size frequency curve“ 中文翻譯： 粒度頻率微分曲線; 微分粒度頻率曲線“distribution of frequency curve“ 中文翻譯： 頻數曲線分配“experimental frequency curve“ 中文翻譯： 經驗頻率曲線“flood frequency curve“ 中文翻譯： 洪水頻率曲線“flood-frequency curve“ 中文翻譯： 洪水頻率曲線“frequency calibration curve“ 中文翻譯： 頻率校準曲線“frequency cumulative distribution curve“ 中文翻譯： 頻率累積分布曲線“frequency curve chart“ 中文翻譯： 頻率曲線圖, 次數分配曲線圖“frequency distribution curve“ 中文翻譯： 次數分布曲線; 頻次分配曲線; 頻率分布曲線“frequency gain curve“ 中文翻譯： 頻率增益曲線“frequency phase characteristic curve“ 中文翻譯： 頻率相位特性曲線“frequency response curve“ 中文翻譯： 頻率響應曲線; 頻率響應特性“frequency threshold curve“ 中文翻譯： 頻率閾曲線,頻率閾值曲線“frequency tuning curve“ 中文翻譯： 頻率調諧曲線“frequency-distribution curve“ 中文翻譯： 頻率分布曲線
frequency distribution |
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The research of reservoir design flood is one of basic works in this subject . it is based on the reasons , and the actual conditions of baipenzhu reservoir are combined , the following contents are researched in this paper : 1 . according to the actual conditions of baipenzhu reservoir and through the compare of parameters estimation methods , a objective and having fine statistic characteristics p - iii frequency curve distribution parameters estimation method of proximate baipenzhu reservoir is putted 正是基于這種考慮，本論文結合白盆珠水庫的實際情況，本著理論性與實用性相結合的原則，重點研究以下內容： 1 、根據白盆珠水庫的實際情況，對各種參數估計方法進行比較，提出一種客觀、有良好統計特性、適用于白盆珠水庫的p ?型分布參數估計方法； 2 、利用實測流量資料推求設計洪水過程； 3 、分析計算可能最大洪水( pmf ) ； 4 、對兩種方法計算的設計洪水過程進行調洪演算，推求水庫特征水位。 |
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Because quasi - fermi levels of a laser diode ( ld ) vary with the carrier density , it is predicted that a new type of hysteresis loop should occur for the current passing ld while a hysteresis loop appears on the power - frequency curve of the ecld . an explicit analytical expression for the frequency width of the hysteresis loop and the condition for the formation of the hysreresis loop has been deduced 預測了由于半導體激光二極管( ld )的準費米能級之差隨ld內線流子密度的變化而變化，因而，在調諧外腔半導體激光器的輸出功率?振蕩頻率曲線上出現雙穩環的時候，通過ld的電流也應出現一個伴隨的新型雙穩環? ?電流雙穩環。 |
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Abstract : according to the deep analysis of the typical punching process , the loading charts and the amplitude - frequency curves of straight side cnc turret press frame are obtained . in the end the dynamic response of a typical process is calculated using modal superposition method by fem software marc and the static and dynamic stress of some nodes is compared as well 文摘:根據板料沖裁時的工作負荷圖確定了數控回轉頭壓力機的動載荷譜,并通過傅立葉展開,獲得了壓力機的幅頻譜,最后通過marc軟件采用模態疊加法計算了典型沖裁時機身的動態響應,分析了其動態特性,并對特征點的動靜態應力進行了比較。 |
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Then the general plan of underwater vibrators is put forward . in chapter 3 , combining fluid - solid coupling theory and mechanical vibration theory , we get the coupling equation of moving parts and water . the dynamic characteristics of moving parts are studied with theory of finite element , and additional mass of moving parts is found in fluid - solid coupling field , which makes vibrator ' s natural frequency descend and amplitude - frequency curve downward shift 第三章運用流固耦合理論和機械振動學理論相結合的方法建立運動部件與水的耦合運動方程，利用有限元法對其的動態特性進行了研究，得到了在流固耦合場下運動部件存在的附加質量，該附加質量導致固有頻率下降，單位推力下的加速度頻響曲線整體下移。 |
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This paper simplifies the fourier transform expression by some mathematical ways , proves the feasibility of simplification , analyzes the amplitude - frequency curve in the case of adopting the sampling interval as 10 power period , and draws the picture by employing matlab tools 對連續傅立葉變換公式做了數學上的簡化處理，并證明了簡化的可行性。利用傅立葉變換簡化公式，分析了擴展采樣區間為10倍工頻周期時的幅頻關系曲線，并利用matlab工具作出仿真圖像。 |
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Second , on the basis of supplementing basic data and investigating the historic tidal level , the design tidal level has been analyzed and calculated . as the result of the comparison between p - iii type frequency curve and gumbel curve , the p - iii curve is recommended 其次，在插補延長基本資料、歷史潮位考證的基礎上，進行了設計潮位的分析計算，并分別就采用p -型曲線及gumbel曲線兩種線型適線進行比較探討，推薦采用p -型曲線適線成果。 |
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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。 |
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The structure of the testing platform is described , and the experiment content and principles are given in detail . the transmission error curves and space frequency curves are emulated . the circuits of rotor part and software are finished 本文介紹了實驗臺的整體結構，實驗內容的設置和各實驗的工作原理，模擬了傳動誤差曲線及其空域頻譜圖，詳細闡述了轉子測量的電路設計、下位機程序設計和上位機的軟件設計。 |
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The time - frequency curve of stern scatterer is analyzed . furthermore , high quality images are obtained by identifying the regions which are uniform in frequency . chapter 4 exposits the method of optimal time selection for ship isar imaging in detail 本章分析了船尾處特顯點的時頻分布曲線,并選擇了時頻曲線中頻率近似不變的時間段得到艦船圖像,其成像質量有了較大的提高。 |
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Based on the observed runoff data , more accurate designed flow to a culvert or a small bridge may be obtained by curve fitting on frequency curve of pearson type iii distribution 精度較高的橋涵水文設計是基于所在地實測的徑流資料，采用頻率曲線的適線法獲得。 |
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Phase frequency curve 相頻曲線 |
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Cumulative frequency curve 累積頻數曲線 |
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Speed cumulative frequency curve 速率累加次數曲線 |
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Intensity - frequency curve examination 頻率曲線檢查 |
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Acoustics ; spectra and frequency curves , concepts , representation 聲學.聲譜和頻譜曲線.概念表示法 |