frequency area 中文意思是什麼

frequency area 解釋
頻率范圍
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  • area : n. 1. 面積；平地；地面。2. 空地；〈英國〉地下室前的空地。3. 地區，地方；〈比喻〉區域；范圍。
  1. It is interesting to note that the frequency of bronchitis and pneumonia in great britain has been correlated with area of residence in a polluted area and with social class.

    值得指出的是，在英國，支氣管炎和肺炎的發病率與污染區域中的居住地區和所屬社會階層有關。
  2. Mems ( micro electromechanical system ) has become one of the most rapidly development technologies. along with the rapid development of mems techniques, capacitive sensor is used widely whose capacitance changes small, which has put forward the new request to the measurement technique. the common measure for capacitance measurement is that convert capacitance to voltage, electric current or frequency. the area of polar plate of the capacitor becomes smaller and smaller, and the total capacitance of micro capacitive sensor is usually several pico farad only. as a result, its change amount is smaller

    Mems （ microelectromechanicalsystem ）近年來發展最快的技術之一，隨著mems技術的快速發展，電容式加速度計的電容變化變化量越來越小，對檢測技術提出了新的要求。在電容式傳感器中，常用電容檢測電路是將其轉換為電壓、電流或者頻率信號。目前的微型電容傳感器的極板面積變得越來越小，電容總量只有幾個pf ，變化量就更小。
  3. The water - depth computer monitoring system collects data from gps, multi - frequency fathometer ( 16 frequencies ) and plc network. based on the analysis of these data, a three - dimensional underwater ground profile is presented for the scheduled area of geotextiles - laying, the development tool of the three - dimensional underwater ground profile is opengl. this thesis is organized into five chapters

    水深計算機監控系統採集來自gps 、多通道測深儀（ 16通道）以及plc網路的數據，將這些數據進行處理后，顯示待鋪設軟體排的小區域內的三維水下地形，三維地形的開發採用目前國際上流行的三維圖形介面opengl 。
  4. Virtual studio system, which is a hotspot research area in video frequency production field nowadays, its mostly research content is : shoot the histrionic " s perform in blue box, then by using chroma key, synthesize it with virtual scene produced by computer

    虛擬演播室系統，是當前視頻製作領域的一個研究發展的熱點，其主要研究內容是：在藍箱中拍攝演員的表演，然後通過色鍵將之與計算機製作的虛擬場景合成。
  5. Notable is, congenital in the past rachitic case of illness saves city cover by north more, in recent years classics system investigation discovers our country south is semi - tropical the area discovers congenital rachitic case of illness likewise, accordingly, be in those who advocate prepotent actor yo today, a family lays fact of a child only is to avoid to productive, frequency is produced and prevent congenital a rachitic good policy

    值得注重的是，過去先天性佝僂病的病例多由北方省市報道，近年來經系統調查發現我國南方亞熱帶地區同樣發現有先天性佝僂病病例，因此，在提倡優生優育的今天，一個家庭只生一個孩子實是避免多產、頻產而防止先天性佝僂病的一個好政策。
  6. Our factory is established in 2004, the existing staff 80 people, workshop area 2000m2, has the production assembly line 3 and thespectrometer, the oscilloscope, the high frequency signal generator, leaks the reflectoscope reflector, the pressure resistancereflectoscope reflector, the overflow welding machine, production, thecheck - out facility and so on led lamps and lanterns simulationreflectoscope reflector

    我們廠成立於2004年，現有員工80餘人，廠房面積2000m2 ，擁有生產流水線3條及頻譜儀、示波器、高頻信號發生器、漏電測試儀、耐壓測試儀、溢流焊機、 led燈具模擬測試儀等生產、檢測設備。
  7. The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering

    本文從星載雷達的星地幾何關系入手，舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型，研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法，並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體，完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析，最後完成雷達回波信號的模擬。
  8. Corticofugal modulation of frequency tuning of inferior collicular neurons in big brown bat, eptesicus fuse us chinese science bulletin, 2000 in order to explore the possible mechanism of corticofugal modulation of excitatory frequency tuning curves ( eftcs ) of midbrain neurons, we examine the change of sharpness, frequency - intensity response area, minimum threshold of both eftcs and inhibitory frequency tuning curves ( iftcs ) of inferior coliicular neurons during corticofugal modulation using two - tone inhibition paradigm and micro - electrical stimulation technique

    第二章大棕幅聽皮層對中腦下丘聽神經元頻率調諧曲線的調制科學通報， 2000用雙聲刺激的方法和電刺激技術，進一步研究了在激活聽皮層前後下丘聽神經元興奮性和抑制性頻率調諧曲線的銳度、頻率強度反應區域、最低閾值的協同變化
  9. During corticofugal inhibition, the percent change of frequency - intensity response area of eftcs had significant correlation with the percent change of that of iftcs. these data suggest that cortical neurons are likely to improve frequency information processing of inferior collicular neurons by modulation of iftcs

    當聲源方位由記錄部位對側移向同側時，大多數神經元接受的gaba能抑制性輸入的量增加，與興奮性輸入整合后，導致了頻率調諧特性的方向性差異。
  10. The opposite results were observed for excitatory and inhibitory ftcs of corticofugally facilitated icc neurons. corticofugal inhibition increased sharpness, minimum threshold, and decreased the frequency - intensity response area of eftcs, at the same time it decreased the sharpness, minimum threshold but increased the frequency - intensity response area of iftcs

    結果表明，聲源方位對下丘聽神經元頻率調諧曲線的銳度、最低閾值有影響，多數神經元在記錄部位同側的頻率調諧曲線的銳度比對側大，最低閾值比對側高。
  11. This paper analyzes the characteristics of rainfield and raindrops, gives - formulae to calculate falling velocity of raindrops, studies the frequency of raindrops hitting detonating area of fuzes head on ballistic trajectory based on the theory of exterior ballistics and uses statistical theory to study methods of rainfield simulation

    本文分析了雨場和雨滴的各種特性，給出了雨滴降落速度的計算公式，利用外彈道學的理論研究了引信頭部觸發區在彈道上與雨滴碰撞的頻率，同時還採用統計學手段對雨場模擬的方法進行了研究。
  12. Located in shangxi town of yiwu city, is a pvc blowing toys handbags factory with a large scale founded in 1985, it enjoys 16 - year s history, the factory covers an area of 11000 sq. m including huangshan development zone, owns 130 sets of large, medium small high - frequency heat - combining machines which form the firstclass printing production line in the same line. moreover, there are more than 200 skilled workers and a group of technicians with many years experience of production and ad - ministration served in factory. our factory has set up a good market image and established excellent brand reputation in passed years

    始建於1985年，至今已有16年的歷史。本廠佔地面積約11000平方米含黃山開發區。有大中小高頻熱合機130臺，在同行是一流印花生產線， 200多名熟練生產工人和一批具有多年生產製造管理經驗的專業人士，多年來我廠樹立了良好的市場形象，並建立了良好的品牌信譽。
  13. Second part - the main contribution and research results of this paper are focused on as follows : ( 1 ) how to use the measurements of a dual frequency gps receiver to determine the ionospheric delay correction model for single frequency gps of a local range ; ( 2 ) how to separate the instrumental biases with the ionospheric delays in gps observation ; ( 3 ) how to establish a large range grid ionosphere model and use the gps data of chinese crust movement observation network to investigate the change law of ionospheric tec of china area ; ( 4 ) how to improve the effectiveness of correcting ionospheric delays for waas ' s users under adverse conditions. ( 5 ) how to establish the basic theory and the corresponding framework of monitoring the stochastic ionospheric disturbance using gps ( 6 ) how to improve the modelling ability of ionospheric delay according to its diurnal, seasonal, annual variations based on gps ; ( 7 ) how to meet the demand of correcting the ionospheric delay of high - precision orbit determination for low - earth satellite using a single frequency gps receiver 1 extracting ( local ) ionospheric information from gps data with high - precision the factors are systematically described and analyzed which limit the precision of using gps data to extract ionospheric delays

    二、具體研究工作的系統報告，主要集中在以下幾方面：研究如何利用單臺雙頻gps接收機的觀測信息確定電離層延遲改正模型，為小范圍的單頻用戶服務；研究如何實時分離gps觀測中的儀器偏差與電離層延遲；研究如何建立較大區域的電離層格網模型，進而初步設想利用中國地殼運動觀測網路深入研究我國領域的電離層的電子濃度變化規律；研究單頻用戶在不利條件下，如何更好地利用電離層延遲改正信息；研究利用gps監測隨機電離層擾動的基本理論和框架方案；研究如何綜合顧及電離層的周日、季節和年變化，進一步提高利用gps模擬電離層延遲的能力；研究如何實現星載單頻gps低軌衛星的精密測軌中的電離層延遲改正要求。
  14. Employing the interlaced scanning, current tv system can compress the frequency band of tv signal effectively and facilitate transmission. but this method reduces the scanning lines of pictures and the frequency of the field. it leads the pictures displayed on tv to have such disadvantages as large area flicker, edge flicker, interlace flicker, raster visibility and creeping line etc. to satisfy people " s vision feeling better, the big - screen, multi - function and high quality tv - set have been made great progress

    現行的廣播電視系統由於採用隔行掃描方式，從而有效地壓縮了電視信號的頻帶，有利於傳輸；但由於這種方式使得圖像的掃描行數少，場頻低，導致了重顯的電視圖像有大面積閃爍、邊緣閃爍、行間閃爍、行結構可見及行爬行等。
  15. Thus serious problems in marine environment and ecosystem were induced, such as the worsen of sea water, unbalance of marine ecosystem and the high frequency of red tide, especially in changjiang estuary and the adjacent area which become the high frequency area of red tide

    近年來，由於人類活動的影響，東海海域富營養化程度和范圍逐年加重和擴大，由此導致了水質惡化、海洋生態系失衡、赤潮等海洋災害頻發等重大海洋生態環境問題，尤其是長江口鄰近海域。
  16. By statistical computation we prove that the confluence process of jiangjia ravine obeys the power - law frequency - area distribution

    本文通過統計計算得到，蔣家溝泥石流匯流和流量過程在暴發頻率與泥石流總徑流量上服從負冪律分佈。
  17. Because the system that has self - organized criticality has two important tokens, those are a power - law frequency - area distribution and long correlation in temporal area

    由於自組織臨界性的系統有兩個主要表徵，即在時間域上的負冪律分佈和長程相關性。
  18. And we use statistical computation and relativity analysis for the first time. so we make the conclusion that the simulation system obeys the power - law frequency - area distribution by improved 2 - d ca model. and by relativity analysis we know simulation sequences are long correlative

    通過改進的二維沙堆自動機模型的構建和模擬，本文得到了一系列模擬數據，並在此基礎之上，首次通過統計計算和相關性分析，得到如下結論： （ 1 ）改進的二維沙堆自動機所模擬的系統在沙粒暴發頻率對暴發規模的關繫上服從負冪律分佈。
  19. Experiment results suggest that the response distortion induced by the sealed pressure case appears in the mid and high frequency area

    實驗結果揭示，由高壓密封艙引起的頻響變異發生在中高頻區段。
  20. Spectrum peaks were found in the lower frequency area of the vibration signals obtained from the compressor set

    摘要分析某壓縮機組振動信號的頻譜發現低頻處具有較高的譜峰。
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