近地點速度 的英文怎麼說

中文拼音 [jìndediǎnsùdù]
近地點速度 英文
perigean velocity
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. （快慢的程度） speed; rate; pace; tempo
  1. The study includes the hole color tv imagery system for drill hole, even - pole bore - hole acoustic system and acoustic meter, bore - hole multi - point consolidation apparatus, the quick camera computer - aid image for high rocky slope, image technology for layer analysis, safety monitoring technology for the section close to the dam, software for processing and forecasting the slope monitoring data, high precision geodesy monitoring automation system, etc. all the study results are new, advanced and practical, which has applied in the project and gained the obvious benefits

    鉆孔彩色電視孔壁成像系統、直接橫波測井研究偶極子井下聲系和聲波儀、鉆孔多點滲壓儀及壓模系統、巖質高邊坡快速攝像微機地質素描成圖、層析成像技術、近壩庫段安全監測技術、邊坡監測數據處理預報軟體研究、高精度大地測量監測自動化系統等項目，研究成果內容新、先進、實用，已在工程中應用，效益顯著。
  2. As an effective traffic of light rail transit, it has been widely adopted by many large cities over the vorld, and a few cities of china are planning or building the light rail transit in our country, which has characteristic of saving investment, short construction period, high flexibility and low life - cycle costs for the light rail transit which can be constructed underground or high frame in crucial area, which can be suitable for the requirements of large capacity, high speed, safety and punctuality

    輕軌交通便是其中一種有效的交通方式，近幾年來在世界上各國大城市得到迅速發展，我國也有十幾座城市計劃或正在建設輕軌交通。其具有投資少、建設周期短、靈活性強、運行成本低的特點，可在關鍵地段和市中心區採用高架或地下鐵道結構，使其能運量大、速度快、安全、準點。
  3. Multi - channel deconvolution, based on multi - channel signal analysis, is presented to recover receiver function from three - component teleseismic p waveforms clustered within certain backazimuth and epicenter distance, to increase the resolution of receiver function. wavelet inversion is also introduced to broadband receiver function, to solve for nonuniqueness cased by linear approximation of nonlinear problem, and broadband receiver function is decomposed into multi - resolution versions, and the inversion result for the low - resolution version is iteratively taken as the initial model for the high - resolution, and gradually obtain the inversion model for broadband receiver function

    為克服廣義線性反演對初始模型的依賴性，並保持其快速收斂的特點，本文首次將小波變換引入到接收函數波形反演，將接收函數分解到不同的分辨尺度上，分別進行廣義線性反演，並將低解析度的反演結果作為高解析度反演的初始模型，漸近地獲取寬頻帶接收函數的模型，克服了非線性問題線性化帶來的非唯一性。
  4. The number of the hidden layers of mul - tilayer perceptrons ( mlps ) is analyzed, and three - layer perceptrons neural network is adopted ; by analyzing the mechanism of the neural cells in hidden layer, a method for combining genetic algorithm and bp algorithm to optimize the design of the neural networks is presented, and it solves the defects of getting into infinitesimal locally and low convergence efficiently, it can also solve the problem that it can usually obtain nearly global optimization solution within shorter time through using genetic algorithm method lonely ; several examples validate that this algorithm can simplify the neural networks effectively, and it makes the neural networks solve the practical problem of fault diagnosis more effectively

    對多層感知器隱層數進行了分析，確定採用三層感知器神經網路;通過對隱層神經元作用機理的分析，引入了遺傳演算法與bp演算法相結合以優化設計神經網路的方法，有效地解決了bp演算法收斂速度慢和易陷入局部極小的弱點，還可以解決單獨利用遺傳演算法往往只能在短時間內尋找到接近全局最優的近優解的問題;通過實例驗證了這種演算法能夠有效地簡化神經網路，使神經網路更加有效地解決實際的故障診斷問題。
  5. These roof structures are generally in high turbulent regions, then wind loads become important to these structures. however, wind - induced response for most of roof structures has not been considered in the present load code of building structures because of the complexity of the structures and wind loads. so the investigation for characteristics of wind load of large span roofing becomes a critical subject

    這類結構的屋蓋或看臺挑蓬通常具有質量輕、柔性大、阻尼小、自振頻率低等特點，且往往比較低矮，處于大氣邊界層中風速變化大、湍流度高的近地區域，對風荷載十分敏感，風荷載往往是此類結構設計的主要控制荷載。
  6. If the inputted accelerations are velocity - zeroized and the damage value is calculated according to shear stress " extrema, as to 100 - meter - high earth dam, multi - point effect is not distinct ; but as to 240 - meter - high earth dam, in the part where permanent displacement and damage value is originally bigger the response is less tenser than that by one - point input, and in the part near basement the maximal shear stress and damage value is bigger, that is the multi - point effect in time domain

    若同時進行了多點地震動速度歸零化和採用基於極值的損傷值計算方法，對於100米高的土石壩，多點輸入與單點輸入反應十分接近。對於240米高的超大型土石壩，壩體內永久位移和損傷值較大的部位多點輸入的反應量較小，這是多點輸入反應的特點或說多點效應。另外，多點效應也包括壩基部位的最大動剪應力和損傷值偏大這一效應。
  7. ( 1 ) in the case of short data set, to select embedding space parameters as fast and exact as possible, the improved across displacement method for selecting time delay and the relative gain ratio of false neighbors

    （ 1 ）在短數據集情況下，為了快速、合理地選擇嵌入空間參數，提出了延遲時間選擇的交叉位移改進法和嵌入維數選擇的偽近鄰距離統計增長法，其特點是速度快、重復性好。
  8. The existing fast packet schedule algorithms are almost the proportional fairness fast packet schedule algorithms, but these algorithms either are not able to guarantee the quality of the service or can ’ t be implemented easily in the real product. concerning these issues, the paper will be dedicated to the creative research of the proportional fairness fast packet schedule algorithm within the wcdma high speed downlink packet access. it includes : 1 ) summarizing briefly the wcdma high speed downlink packet access technology ; 2 ) analyzing the research and development situation of fast packet schedule algorithm of the wcdma high speed downlink packet access technology within recent years and giving comments ; 3 ) establishing the fast packet schedule model of the wcdma high speed downlink packet access technology on the base of timely packet schedule model and the principle and procedure of wcdma high speed downlink packet access technology ; 4 ) bringing forward the proportional fairness fast packet schedule algorithms for different scenarios and performing simple analysis ; 5 ) creating the fast packet schedule simulation platform according to our fast packet schedule model to analyze and verify the proposed proportional fairness fast packet schedule algorithms

    本文正是針對上述問題，對wcdma高速下行分組接入技術中部分公平快速分組調度演算法進行創造性探索，主要內容為: 1 ）對wcdma高速下行分組接入技術進行了簡要的歸納、總結; 2 ）對近年來的有關wcdma高速下行分組接入中的分組調度演算法的研究狀況進行總結、分析，指出其優、缺點; 3 ）在timely等分組調度模型的基礎上，結合wcdma高速下行分組接入技術的工作原理和過程，建立了wcdma高速下行分組接入分組調度模型; 4 ）分場景地提出了簡潔、有效、服務質量確保的部分公平快速分組調度演算法，並進行分析; 5 ）在wcdma高速下行分組接入分組調度模型的基礎上創建了快速分組調度模擬平臺，對我們的演算法進行模擬、分析、驗證; 6 ）與其他典型的演算法進行模擬比較，分析各自的特點和性能;模擬結果表明，我們的部分公平快速分組調度演算法能夠達到各場景的設計要求和目標。
  9. It is found that : ( 1 ) for linear slope, redistribution of incoming energy flux in modenumber space depends on both the modenumber of incident waves and the ratio of the slope of incident wave ray to slope of topography ; both the transmitted and reflected energy flux ( only for supercritical linear slope ) focus near one or two modenumbers ; for supercritical linear slope, the energy flux scattering to higher modenumbers becomes larger and the energy flux to lower modenumbers becomes smaller as the slope of incident wave ray comes near to slope of topography ; ( 2 ) for convex slope, energy flux is redistributed in wide - range modenumbers and also show peaks on lower - modenubers and higher - modenumbers ; ( 3 ) for concave slope, energy flux is also redistributed in wide - range modenumbers, but does not show peaks on higher - modenumbers as supercritical linear slope and convex slope do ; ( 4 ) the total energy flux scattering to higher modenumbers is approximately equal to the total energy flux to lower modenumbers for internal waves propagating over both convex slope and concave slope, which means the concave slope is the same efficient to convex slope in scattering energy flux to higher modenumbers ; ( 5 ) for convex slope, the wave ray reflected from near - critical topography can extend to deep ocean and shallow shelf, while for concave slope, the wave ray reflected from near - critical topography can only extend to limited distance, then meet the topography and be reflected again ; generally the shear of the internal waves reflected twice from concave slope is not enhanced while the enhanced shear does also appear before second reflection takes place, the enhanced shear can bring about intense mixing, so internal waves reflected from concave slope can also produce marked mixing near critical slope

    3 、內波在凹地形上傳播時，能通量在模態上的分佈范圍也比較寬，但與凸地形和超臨界線性斜坡地形相比，能通量在高模態上的分佈沒有明顯的峰值。 4 、從總的能通量來講，內波在凸地形和凹地形上傳播時，向高模態散射的能通量與向低模態散射的能通若十地形下內波傳播及內潮生成問題的理論解量近似相等，這意味著二者在向高模態散射能通量方面具有同等效率。 5 、凸地形上臨界點附近的反射，反射波的波射線能夠延伸到深海和陸架，凹地形上臨界點附近的反射，反射波的波射線很快遇到地形發生二次反射，一般來講二次反射后回到深海的波動其速度剪切並不很強，但是在進行二次反射之前的區域，速度剪切仍然很強，因而內波在凹地形上的反射依然能夠在地形附近區域，產生強的速度剪切區，誘發混合。
  10. The article points out that our pharmaceutical enterprises should positively take part in merger and acquisition to enlarge enterprises scale and to centralize pharmaceutical production, in order that our enterprises can suit the changed situations and can meet head on pharmaceutical enterprises all over the world

    指出目前我國制藥企業應積極地參入並購，迅速壯大企業規模、提高產業集中度，以便適應環境的變化，應對全球制藥企業的挑戰。並以文中的觀點，基於產品戰略對雙鶴藥業近年來的高速擴張給予了實例分析。
  11. The calculation speed over finite fields greatly affects the performance of ecc implementation. so, to find a fast algorithm for finite field calculation becomes a hot field in recent cryptography researches

    Ecc中有限域上運算的速度極大地影響ecc實現速度，尋找有限域快速運算演算法也就成了近年來密碼學研究的一個熱點領域。
  12. In this part, response spectrum and fourier amplitude spectrum are studied, the main results are as follows : 1 ) response spectrum analysis : a ) absolute acceleration response spectrum ( sa ) : ( 1 ) in general, response spectrum decrease with depth, for m < 4. 5, the shape and the predominant period of each response spectrum in different depths are similar : the variation of spectra with depth focus on near - surface level ; the normalized spectra are similar to each other, except the predominant perk value in middle depth of some earthquakes is higher than other depth

    地震動反應譜沿深度變化的規律（ l ）加速度反應譜（ s 、 ）沿深度的變化規律一般，加速度反應譜（ s 。 ）隨深度的增加而減小。震級較小時，不同深度各測點的反應譜形狀很相似，卓越周期基本一致;淺層處反應譜沿深度的變化梯度較大;深層處反應譜大小比較接近;強震時，反應譜形狀在短周期有較小差別，長周期逐漸接近。
  13. This method, adopting admittance model in load bus and using the activities supplied by pss / e, can compute the voltage stability limit effectively. the difficulties connected with the singular load flow jacobian matrix are overcame in this algorithm

    該方法通過調用pss e的潮流計算模塊，採用負荷導納模型，有效地克服了臨界點附近常規潮流雅克比矩陣奇異所帶來的收斂困難，且簡單易行，計算速度快，概念明確。
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