primary frequency 中文意思是什麼
primary frequency
解釋
主頻率主用頻率-
A building of high, the breadth, long comparison is very important. house for combination in an ideal of big set, reruns hour then contain the best frequency to respond to the width. frequency response range in other words, the combination can broadcast tallest to can also fully develop to the lowest frequency, and the equilibrium degree is as well high, and halt a circumstance is very tiny. the first glint wave primary reflection mutual interference for with wave secondary reflection of many glints the degree is not to result in confusion. combination that fundermental the diapason wave harmonics is again perfect
大套組合在一間理想的房子里，重播時便有最佳的頻率響應寬度frequency response range 。換句話說，組合所能播放的最高至最低頻率也可以盡情發揮，平衡度亦高，駐波情況極微。第一反射音波primary reflection和多次反射音波secondary reflection的互相干擾情度不至造成混亂。 -
The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band.
聲發射源與接收訊號傳感器間的距離以及環境噪聲的電平是選擇頻帶的主要依據。 -
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。 -
Compound pattern ( 6. 4 % ), its scatter map of isi series displayed two or more oscillation patterns. 4. after the bath in 1. 8 - 3 u mol / l veratridine, touch or pressure on the l5 receptive fields could trigger some primary silent drg neurons to produce high - frequency firing, termed triggered oscillation, whose interspike intervals ( isi ) showed u - type or other types of oscillations
在部分靜息神經元lsdrg浸浴壹蘆堿后，觸壓該神經元的皮膚感受野，可以觸發產生持續數秒至數十秒的高頻放電，在散點圖上，其isi序列形成u字形或彌散形等型式的振蕩，稱之為觸發振蕩。 -
The low - frequency and high - power projector have became the primary candidate of sonar system application since the early 1980s. among them, the flextensional transducers are the low - frequency and high - power projector applied the most widely and the most ideally
自從八十年代早期，低頻大功率發射換能器已成為聲納應用的首選目標，其中，彎張換能器是應用得最普遍、最理想的低頻、大功率換能器。 -
And it investigates the appearance condition ( including joint, crack, eroding, corrosion, braking pole device rupture, crane - girder ' s gnawing railway and so on ) of the whole crane - girder system on the spot, at the same time, it also actually examines the stress of the beam, chemical ingredient, distortion and railway excursion, etc. through sampling, and based on the actually examined results, it checks and calculates the carrying capacity of crane - girder system. then, based on the investigating on the spot and the calculated result, it discusses the mechanism of fatigue failure of the upper part of welded steel crane - girder, analyses the reason of steel crane - girder in the high - frequency emerging the fatigue crack, institutes the strengthened method of damaged steel crane - girder of accurate packing up workshop of the primary mill plant. finally, it presents some advice and suggestions for the repairing and strengthening method of fatigue crack of upper part of steel crane - girder in the high - frequency
針對包鋼初軋廠精整車間鋼吊車樑上部區域出現裂縫這一問題，本文首先綜述了國內外關于焊接鋼吊車樑上部區域疲勞裂縫的研究現狀；其次對整個吊車梁系統的外觀情況（包括連接、裂縫、腐蝕、銹蝕、制動桿件斷裂、吊車啃軌等）進行了現場調查，抽樣實測了梁的應力、化學成分、變形及軌道偏移等，根據實測結果，對吊車梁系統的承載能力進行了驗算；然後，根據現場調查及計算結果，探討了焊接鋼吊車樑上部區域疲勞破壞的機理，分析了重級工作制鋼吊車梁出現疲勞裂縫的原因，制定了初軋廠精整車間破損鋼吊車梁的加固方案；最後就重級工作制鋼吊車樑上部區域出現疲勞裂縫的修復與加固方案提出了一些意見和建議。 -
The studies of in - layer heterogeneity are as follows : the text depicts the characteristics of heterogeneity by calculating the coefficient of variability, kmax / k and k. max / k. min of sand layers of different sedimentous microfacies ; divides interlayer into two types, and counts their numbers, thickness, frequency and density of a single sand layer according to the characteristics of lithology and logging, finally summarizes the characteristics of interlayer distributing ; sets up five in - layer heterogeneity models and points out that the primary models are model a and c. the studies of between - layer heterogeneity are as follows : the text depicts sand layers " growth and distributing conditions by calculating the lamination factor, sandstone density and overlap coefficient ; makes certain the lithology and thickness of interlayer by the method of contrasting the typical curves
層內非均質性研究，通過計算不同沉積微相砂體滲透率的變異系數、突進系數以及級差來說明主要儲集微相的非均質特徵；據巖性及電性特徵，將層內夾層分為兩類，統計單砂層段內夾層的個數、累積夾層厚度、夾層頻率及夾層密度，並且根據夾層頻率及密度平面分布圖統計出每層的頻率相對高值區和低值區，總結夾層分佈特徵；根據物性參數隨深度的變化趨勢建立了五種儲層層內物性非均質模式，指出研究區內以a型和c型模式為主。 -
The primary aim of the single chip microcomputer circuit of this project is data collecting, it applied the invention monopoly of professor zhang guanghui and professor peng donglin of chongqing university, make use of the high frequency inserted pulse, and join together the software to constitute subsidiary calibration distributed on equal time, complete the task of on - line subdivision in the dynamic measure process, finally up pass the data to pc, pc handle it and get examination result
下位機是硬體集成電路，利用重慶大學張光輝教授、彭東林教授的發明專利「計算機對脈沖信號的細分與辨向新方法」 ，附加頻率極高的外部插入脈沖，結合軟體構成按時間均勻分度的輔助標尺，實現動態測量過程中采樣點的實時細分，最終完成數據採集任務；上位機主要是軟體部分，利用pc機接收下位機的採集數據並進行分析處理，得出檢測結果。 -
The concept of " timing " in the article is not the clock in our ordinary living, but syntheses which is made up of some frequency source in the signal generator ( such as cs atom frequency standard, rb clock & high accuracy quartz crystal oscillator ) which produces the primary frequency, the matching input interface and the matching output interface and controlling circuit etc. for example, bits is a kind of timing equipment, which is used to control the timing of some functions
本文論及的「時鐘」概念不是指日常生活中使用的鐘表，而是由產生基準頻率的信號發生器（如銫原子頻率標準、銣鐘及高精度石英晶體振蕩器等）中的某種頻率源以及相配套的輸入、輸出介面和控制電路等組成的一整套具有特定同步定時功能的綜合體。如bits就是一種時鐘設備，它提供用在通信系統中控制某些功能的定時的時間基準設備，時鐘提供的信號稱為基準信號、定時信號或同步信號。 -
A summary of the principal applications and primary users of time and frequency measurements, in industry, universities, and government
時間和頻率計量在工業、大學、和政府中的主要應用。 -
( 三 ) under the dynamic load of the explosion, the numeric analysis has been done and achieve the rule as follow : ( 1 ) when the frequency of vibration is 0. 3hz, the acceleration of the slopes top gets the maximum ; so 0. 3hz is believed the natural frequency of the slope as a whole ; ( 2 ) the vibration of explosion can been magnified because of the condition of the landform, when the relative altitude is up to 45m, the acceleration of horizon gets the maximum ; when the relative altitude is up to 100m, the absolute value of acceleration and the deformation of horizon is larger than that in the bottom of the slope ; ( 3 ) in the period of forced vibration, at the top of the slope, the acceleration of horizon become larger and larger ; at the middle part of the slope, it becomes smaller ; ( 4 ) when the explosion velocity of is much little, the shallow part destruction is the primary deformation of the slope
（三）採用模態疊加法針對爆破動力作用，進行邊坡的動力響應分析，得出了以下結論： （ 1 ）振動頻率為0 . 3hz時，坡面頂部水平向加速度峰值最大；綜合考慮，可認為該邊坡的自振頻率為0 . 3hz左右； （ 2 ）地形對爆破地振動存在放大作用，研究剖面的坡面，水平向加速度及位移在地形相對高差45米左右最大，而後隨相對高差的增高而減小，相對高差為100米時，水平向位移及加速度絕對值均大於坡腳； （ 3 ）強迫振動段，水平向加速度值隨時間變化的規律為：坡頂節點總的變化趨勢是越來越大，而坡體中部節點的變化趨勢是越來越小； （ 4 ）當爆破振速較小時，變形破壞的形式表現為坡頂表面滑塌型。 -
The present study aims to examine : ( 1 ) the general characteristic of bully / victim problem in primary and junior middle school ; ( 2 ) how children school behavior, peer relationship, self - esteem, loneliness, depression, anxiety vary across gender, grade, bully / victim status ; ( 3 ) how well can the frequency and duration of bullying / victimization predict children ' s school adjustment and mental health. date were collected via a questionnaire battery and social competence scale. the participants were 827 students from grade 3, 5, 7, 9 in the four primary and junior middle schools
本研究探討的主要問題包括中小學欺負發生的基本特點，不同性別、年級、欺負受欺負地位兒童的學校行為、同伴關系、自尊、孤獨、壓抑、焦慮等各方面的特點，兒童欺負受欺負頻次及持續時間對兒童的學校行為、同伴關系、自尊及心理健康狀況的影響，本研究採用分層整群抽樣法，用問卷法（ olwues欺負問卷、自尊問卷、焦慮量表、壓抑量表、孤獨量表）和社會測量法（班級戲劇、同伴提名）對827名中小學生（包括小學三、五年級和初中一、三年級）進行了調查。 -
The growth rate of inflectional instability and viscous instability also saturate similarly to the primary and nonlinearly generated disturbances. the main effect of inflectional instability mode in the final breakdown seems to interact with the disturbances having developed and thus widens the frequency spectrum to turbulent state
屬于拐點不穩定性的高頻二次不穩定模態對最後轉捩的影響主要體現在與其它擾動的相互作用，並導致出現紊流狀態寬帶頻譜。 -
In the chapter one, the primary principle of invert technique and its types have been dealt with. it also previews the development on high power invert technique in the future, as the result pointing out that the trend of the coming invert technique are high frequency, high power and highly intelligence
本文在第一章論述了逆變的基本原理與分類，並對大功率逆變技術的未來發展作了展望，指出了高頻化、高容量化、與智能化是其今後的發展趨勢。 -
Design amp; amp; preliminary results of nim cesium fountain primary frequency standard
銫原子噴泉頻率基準的設計與初步結果 -
Keywords ： fossil power plant ； primary frequency control ； coordinate control system ； stability
關鍵詞：火電機組；一次調頻；協調控制系統；穩定性 -
This paper with the thermodynamic control characteristics for 320mw supercritical power generation units and one through boiler of the former soviet union for example, briefly analyzes some essential characteristic of control, measure and protection of supercritical generation units and one through boiler, finally analyzes control strategies of the feed water system, the combustion system, the steam temperature system, agc and the primary frequency control system
本文以前蘇聯超臨界機組熱控技術特點為例，簡要分析了超臨界直流爐大型機組控制、測量、保護的基本特點，並進一步分析了給水系統、燃燒系統、汽溫系統及agc 、一次調頻的控制策略。 -
Primary frequency regulation was selected as effective solution
選定利用機組一次調頻功能為主要解決方案。 -
Configuration principle and function realization of 135mw units ' primary frequency regulation
機組一次調頻組態原理與功能實現 -
Introduction to frequency standards and clocks, including atomic clocks and primary frequency standards, quartz oscillators, and other standards
介紹頻率標準和時鐘，包括原子鐘、一等頻率標準，石英晶體振蕩器和其他標準。
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