datum level 中文意思是什麼

datum level 解釋
基準水平面。

  • datum : n. （pl. data ） 〈拉丁語〉1. 〈常 pl. 〉 數據，資料。2. 論據，作為論據的事實。3. 【數學】已知數。4. 【測】基點，基線，基面。
  • level : n 1 水平儀，水準儀；水準測量。2 水平線，水平面；水平狀態；平面，平地。3 水平，水準；水位；標準；...
  1. The piezometric head is also measured from the same datum level.

    測壓水頭亦應從同一基準面算起。
  2. System safety design controls safety of datum from three aspects, " physics level ", " system level " and " data level "

    系統安全設計從「物理層」 、 「系統層」 、 「數據層」三個方面對數據的安全性進行了控制。
  3. To do the investigating and studying work about the achievements of tackling key problem of the quondam exploration of front - zone of mountain, to analyze and study the applicability about the gathering technology used in the seismic exploration of the complicated construction belt of front - zone of mountainous ; 2. combining the quondam achievements, researching the design method of observation system objective of the complicated construction belt based on seismic - geology model, firstly, building the surface level and deep layer seismic - geology model of complicated construction belt and analyzing the forward model, secondly, designing the observation system aiming at the overthrust nappe structure in section and in area ; 3. aiming at the complicated earth ' s surface condition of front - zone of mountain, how to select the exciting method and the parameter, how to optimize the environment of exciting method and reception, how to pledge the normal combination of the datum of different exciting method ; 4

    根據山前帶的地震地質條件特點，本文主要研究了以下幾個方面的內容： 1 、對以往山前帶地震攻關成果開展調研工作，分析研究在山地山前復雜構造帶所採用的地震勘探採集技術的適用性； 2 、研究基於地震地質模型的復雜構造帶觀測系統目標設計方法：如何建立復雜構造帶的表層、深層地震地質模型，利用正演分析目標區的觀測系統；針對逆掩推覆體構造，如何分區分段有針對性設計觀測系統等； 3 、針對復雜地表條件的山地山前帶，如何選擇激發方式、參數，如何優選激發、接收環境，如何保證不同激發方式的資料能正常拼接； 4 、山前帶巨厚礫石區的表層結構調查技術及靜校正方法研究。
  4. Yellow sea datum : the level to which land surveys in mainland china are referenced

    黃海基準面：中國大陸測量土地的基礎高度。
  5. A rather large spring tide occurred on july 4, 2004. on that occasion, the lowest sea level recorded in victoria harbour was 0. 07 metre below chart datum and a few ferries experienced difficulty while berthing

    二四年七月四日亦出現了一次較大的大潮，當日維多利亞港錄得的最低水位為海圖基準面以下0
  6. According to the hong kong observatory s tidal records at the tai po kau tide gauge station, the highest sea level was 2. 94 metres above chart datum on that day

    根據香港天文臺大埔?測潮站的記錄，當日的最高水位為海圖基準面以上2 . 94米。
  7. 3. the drop datum of largest water level in researched reaches increases relatively with length increase of dredging channel in definite condition of discharge and sediment and definite dredged sediment quantity or dredged morphology of transversal section

    在一定的水沙條件和一定的挖沙量或一定挖河斷面條件下，隨挖河長度增加，研究西安理工大學工程碩士學位論文河段最大水位降落值相對越大。
  8. Chart datum : the level to which soundings or tide heights are referenced

    海圖基準面：測量水深或潮水高度的基礎高度。
  9. Based on the spectrum of mean sea level ( msl ) and the relation model between two tidal stations, the mathematical model for hydrographic datum transfer are studied

    基於平均海面的頻譜結構和兩驗潮站潮位之間的關系模型，對基準面傳遞的方法原理進行了理論研究。
  10. Water level in the tolo harbour was as high as 5. 4 metres above chart datum as compared with the normal high tide of 2. 2

    吐露港的潮水高度竟達海圖基準面以上5 . 4米，而正常的漲潮只有2 . 2米。
  11. The in - situ testing includes surface deformations, sub - surface movements, earth pressures, pore water pressures, underground water levels, spt, stresses of pipes and pipe - soil contact stresses. in addition, the total jacking forces, deviations in line and level of the pipe line and earth pressures in the earth pressure balance machines ( epbm ) are also recorded. the results of field - testing are analyzed, and the variety of testing datum include earth pressures, pore water pressures and underground water levels during the course of the shield through it are studied

    現場測試內容包括地面變形、深層土體變形、土壓力變化、孔隙水壓力變化、地下水位變化、土體標準貫入試驗、管道內力變化、管土接觸應力變化以及頂管施工現場記錄（包括頂力、土壓力、平面偏差、高程偏差等） 。
  12. The text uses the macroeconomic model to analyze the measurement mechanism of the financial risk datum point level. it describes the basic mechanism that the loss factor conducting with the whole macroeconomic environment in the financial system in detail at the same time. and it analyzed the original cause of the condition that transforms each other briefly and the basic theory of fiscal crisis

    在這些分析的基礎上本文把風險管理理論系統地引入財政風險研究中來，分析了財政風險過程的基本特徵，闡發了財政風險轉化條件、基準點等概念，運用宏觀經濟模型構建了財政風險基準點水平的衡量機制，詳細描繪了損失因素在財政系統內部和整個宏觀經濟環境中傳導的基本機理，並簡要分析了財政危機的成因、發生條件和向其他領域危機相互轉化的條件。
  13. The shake wave appear in the datum of strain and ground deformation, the step change appear in the datum of water temperature and water level, and the ability difference of recording earthquakes is large

    應變及地傾斜出現幅度不同的震蕩波，水溫和水位大部分出現明顯階變，且不同的儀器記震能力相差很大。
  14. On the basement of the quantitative analysis about the relationship between the rural industrialization and urbanization in gansu, the following conclusions have been drew in this paper ( 1 ) the development of town and township enterprises is the important driving force during the process of gansu ' s rural urbanization, and this point has been drew easily from the regression results showing that there is strong correlation ship between indexes about the urbanization process and ones about the development of town and township enterprises ; ( 2 ) nowadays the town and township enterprises ' driving on the rural urbanization of gansu ' s counties and restricts has seemed quite limited, because in the correlate analysis with the datum in 2003, the coefficient between the employment number of town and township enterprises and the urbanization level is only 0. 058 ; ( 3 ) there is no well mutually driving relationships between the rural industrialization and urbanization in gansu greatly because of the many existing problems such as too small business scale, capital shortage, low technique level, low quality of employees, imperfects of system etc. in the development of the town and township enterprises and the many deflects such as small scale, scattered distribution, signalized function etc. in the development of small towns

    在對甘肅農村工業化和農村城鎮化的關系進行定量分析的基礎上，得出結論： （ 1 ）鄉鎮企業發展是甘肅農村城鎮化的重要推動力（回歸結果顯示城鎮化進程的指標和大部分鄉鎮企業發展的指標間存在著很強的相關關系） ； （ 2 ）現階段鄉鎮企業在全省各縣區城鎮化進程中的作用已相對局限（在對2003年截面數據的相關分析中鄉鎮企業就業人數和城鎮化水平之間的相關關系極其微弱，相關系數為0 . 058 ） ； （ 3 ）甘肅鄉鎮企業發展中存在的諸如經營規模過小、資金短缺、技術層次低、從業人員素質低以及體制制度方面存在缺陷等一系列問題和小城鎮發展中存在的規模過小、建設檔次低、布局分散、職能趨同性強等問題致使鄉鎮企業發展和農村城鎮化發展在現階段沒有能很好地相互推動和促進。
  15. One is to use fourier transformation to convert the source signal from time domain to frequency domain and to discard high frequency harmonious components upwards of 19 ( gb / t14953 - 93 d5. 3 demanding ), then to have static huffman coding to the quantized char array which is composed of reserved direct current component and basic wave and each high frequency " s amplitudes and angles. the other is to use discrete wavelet transformation to convert the source signal from time domain to frequency domain and to set the high frequency coefficients that its absolute value is smaller than the given threshold to zero, then to have dynamic huffman coding to the quantized char array which is composed of multiple, wavelet ' s level, datum length, low frequency coefficients and reserved high frequency coefficients. mass simulinks and analyses under the two circumstances have done to show that data compression ratio is small and the relative error is also small and within the permission of engineering and the compression problem can be solved in theory of measured datum of power system

    第一種情況的壓縮方法為：採用傳統的傅立葉變換把原始信號從時間域變換到頻率域，舍棄20次及其以上的高次諧波成分（保證了gb / t14953 ? 93d5 . 3要求） ，然後對保留的直流分量、基波和各次諧波的幅值和相角數據量化后和量化時分別乘以的倍數系數構成一個數組，以字元形式保存，採用靜態huffman編碼對變換數據進行壓縮；採用離散小波變換把原始信號從時間域變換到頻率域，然後對分解得到的高頻系數進行閾值量化處理，對乘以的倍數系數、小波變換的階數、小波變換后的低頻、各級高頻以及原始數據長度、量化后的低頻系數以及保留的高頻系數大小、位置構成一個數組，以字元形式保存，採用動態huffman編碼對這個文件進行壓縮。
  16. All depths in sea refer to the chart datum which is 1. 38 metres below the mean sea level

    所有水深均以海圖水平基準為計算根據，該基準位於平均海平面以下1
  17. All levels in land refer to the hong kong principal datum which is 1. 23 metres below the mean sea level

    水準所有地面水準均以香港主水平基準為計算根據，該基準位於平均海平面以下1 . 23米。
  18. Hong kong principal datum : the level to which land surveys in hong kong are referenced

    香港主水平基準面:香港測量土地的基礎高度。
  19. The author emphasized on the research of the process of tidal flat hydrodynamic and the process of total nitrogen, total phosphor dynamical transportation and got the conclusion as follows : ( 1 ) open tidal flat of dong tang chongming yangtze estuary was chosen as research object and two typical section plane was set up in order to measure four seasonal hydrology element and get index datum such as water level, current direction, current speed

    得到如下結論： （ 1 ）以長江口崇明東灘敞開型潮灘為研究對象，設置了兩條代表性斷面，實測了四個季節的水文要素，獲得了包含水位、流向、流速等指標數據。
  20. On the basis of it, i design and implement ipsec in the network protocol stack of linux kernel, which can verify the encryption, integrity and authenticity of data at the ip level. it solves the problem of identification deceit, malicious modification and interception when datum is transmitted on the network, and the security of network transmission is improved greatly

    在此基礎上，在linux內核ip協議棧中設計並實現了ipsec ，在ip層提供數據傳輸的機密性、完整性和真實性，解決ip數據報在網路中傳輸時的身份偽造、被人篡改以及被竊聽的問題，使網路傳輸安全性得到很大提高。
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