數據常數 的英文怎麼說

中文拼音 [shǔjùchángshǔ]
數據常數 英文
data co tant
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 據 : 據Ⅰ動詞1 （占據） occupy; seize 2 （憑借; 依靠） rely on; depend on Ⅱ介詞（按照; 依據） according...
  • 數據 : data; record; information
  1. The following are frequently asked questions about data access programming

    下面是一些有關數據訪問編程的常見問題（ faq ） ：
  2. For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field

    因此，對該區裂縫性儲集層的類型識別、孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此，本文從測井地質的角度，針對當前裂縫性儲層測井地質解釋與評價的現狀，在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上，利用分形分維方法和技術，通過對archie測井解釋模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ （ fa ）與m指數的理論推導，根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜，則其分維值d _ （ fa ）越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵，提出了改進的基於盒維數的測井曲線網格覆蓋法，編程計算了裂縫性儲層段常規測井曲線（如聲波和電阻率曲線）上分形分維值及其m指數值，進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究，效果十分理想： 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪，採用儲層分維值分類技術統計分析這些參數變化的規律，並結合qx油田l區塊儲層類型經驗判別圖版，從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。
  3. As a result, analytical data obtained by analysts were often in disagreement.

    結果各個分析家所得的分析數據常常不一致。
  4. The construction of land use status information system improves the accuracy and the trends of times of land use information, it automatically stores, manages, researches, inquires, counts, analyzes, renews and defends land use status graph which is digital, solves the problem of the renewal of land use status graph and data. it provides not only modern technology means for everyday professional work in county level land management department, but also basic data and scientific basis for land use renewable investigation, dynamic monitoring, land use totality planning. on the other hand, it lays a foundation for the establishment of cropland transform system, land exploitation and readjustment, approvable management system of construction project used land, management system of rural land register

    土地利用現狀信息系統的建設，提高了土地利用現狀信息的準確性和現勢性，實現了對土地利用現狀圖件的存儲、管理、檢索、查詢、統計、分析、變更、維護的數字化和自動化，從根本上解決了土地利用現狀圖及數據的更新問題，不僅為縣級土地管理部門的日常業務工作提供了現代化的技術手段，而且為土地利用變更調查、動態監測、土地利用總體規劃提供了基礎數據和科學依據，為農地轉用制度、土地開發整理、建設項目用地審批管理制度及農村地籍管理制度的建立莫定了現代化基礎，同時也可為土地利用動態監測、土地利用規劃、建設用地的審批和管理提供技術服務。
  5. An approach commonly used is to reconstruct the time - apse images by inverting the geophysical data collected at different time independently, which can not make full use of the field information

    一種常用的途徑就是通過獨立反演不同時刻採集的地球物理數據，來重構間歇影像，這使得實測的數據信息得不到充分利用。
  6. The science database has been successfully relocated. the splitters and assimilator are back online

    科學數據庫已經安置好。任務分配和回收系統也已經回復正常。
  7. Hash bailout usually occurs because of skewed data

    哈希釋放通常是由於偏斜數據造成的。
  8. Two common approaches to mapping xml to databases are : a table - based mapping and an object - relational or object - based mapping

    將xml映射到數據庫有兩種常見的方法：基於表的映射和對象-關系（或基於對象的）映射。
  9. Phenological data, as mentioned in the previous section, is often taken on a calendar day basis.

    物候學的數據，正如前面一節里指出的那樣，通常是採用日歷的天數作依據。
  10. The data from cape kennedy are used quite extensively in the analysis.

    肯尼迪角所測得的數據使用得非常廣泛。
  11. Usually refers to a data format of non - xml data, such as bmp

    通常是指非xml數據的數據格式（例如bmp ） 。
  12. However, their raw interfaces are often anything but friendly, supplying and demanding data that is often irrelevant to a particular user s needs

    然而，它們的原始介面常常不夠友好，提供和要求的數據常常與特定用戶的需求不相關。
  13. Unfortunately, it s often quite easy to steal digital data

    遺憾的是，盜取數字數據常常很容易。
  14. The performance of similarity indexing structures in high dimensions degrades rapidly. in lower dimensional space, we often use lp - norm to measure the proximity between two points, but in many case the concept of this proximity is never meaningless in high dimensional space. these issues bring high dimensional data mining two challenges

    隨著數據維數的升高，高維索引結構的性能迅速下降，在低維空間中，我們經常採用l _ p距離作為數據之間的相似性度量，在高維空間中很多情況下這種相似性的概念不復存在，這就給高維數據挖掘帶來了很嚴峻的考驗，一方面引起基於索引結構的數據挖掘演算法的性能下降，另一方面很多基於全空間距離函數的挖掘方法也會失效。
  15. This data can be used to learn which subroutines are the most critical and, therefore, demand the greatest code efficiency

    這些數據常被用來了解哪些子程序是最關鍵的，並且，由此要求使最好的代碼有效率。
  16. In this paper, we present a method of how to make factor anlysis when survey data compose of some item - nonresponses. we combine the factor anlysis model and response model, by treating the factors as latent variables which influence item response pobability, and assuming the response pobability has a logit model. after that, we give a two - step method to estimate the parameters

    在進行因子分析時，調查數據常常存在項目無回答的情況，本文將諸因子作為隱含變量，建立無回答概率與諸因子的統計模型，並給出模型參數的兩步估計方法，從而得到了存在項目無回答時的因子分析。
  17. However, owing to the many possible combinations of saturation for a single medium, laboratory data are usually summarized and reported as relative permeability

    然而由於對于單一介質中流體飽和度有許多可能的組合，因此是巖石所獲得的數據常常被歸納和陳述為相對滲透率的數據。
  18. The data in xml files frequently includes hierarchical relationships

    Xml文件中的數據常常包含層次結構關系。
  19. The data in the xml files frequently includes hierarchical relationships

    Xml文件中的數據常常包含層次結構關系。
  20. The amount of raw data of sar is so large that it is difficult to downlink and to save

    合成孔徑雷達的原始數據的數據率非常高，給數據的傳輸和存儲帶來很大困難。
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