datum line 中文意思是什麼

datum line 解釋
基準線。

  • 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。
  • line : n 1 線；繩索；釣絲；測深度用繩，捲尺。 a fishing line 釣魚線。 be clever with rod and line 會釣魚...
  1. Starting with the changing process of village hamlet community, on the basis of literature and datum ， the writer investigates thoroughly a village on the boundary of fuqing and putian by the means of individual inquiry and research on the spot, describes the village hamlet community ' s formation and evolution process, emphasizes to expound the everyday life of the village hamlet community and clans with members of the same clan ' s blood line as well as the influence and function of this village ' s particular contacting network in the village hamlet community

    本文從了解農村的村落共同體變遷過程出發，在已有文獻和資料的基礎上，運用實地研究和個案訪談的方法，深入調查了一個地處福建省閩中地區福清市和莆田市交界的村落，描述了該村落共同體的形成與演化過程；著重論述了以宗親血緣關系為紐帶的宗族、村落共同體的日常生活表現以及該村獨特的共同體聯系網路在該村村落共同體中的作用與影響。
  2. A line of punch positions parallel to the y datum line of a punch card

    和卡片的y基準線平行的一行穿孔位置。
  3. First the sketch / datum plane is fitted by least - square distance, then the extruded direction or axis with the flank points of the cloud is extracted in quadratic paogramming arithmetic, and certain points projected to gain 2d sketched datas. feature points are defined to segment the sketch datas, and the sketch profile is generated by fitting separately the line and circle segment

    使用最小二乘方法擬合草圖基準平面，採用二次規劃方法提取拉伸方向和旋轉軸線，然後將數據點投影以獲取草圖數據，通過柵格劃分提取草圖邊界輪廓數據，再對這些邊界數據進行基於特徵點的分割，以直線和圓弧段擬合出草圖輪廓。
  4. Therefore, the method of screen spreading is presented herein with the following basic feature : taking the surface of the perpendicular line at the end of the distortion and bottom as the datum plane, move the controlling point of every distortion part to the datum plane with the principle of changeless of geometry size, and then the spreading is formed

    為此提出一種屏幕展開方法，此方法的基本要點是，以扭曲面末端垂直線和底部起坡線所在的平面為基準面，將扭曲面各分塊的控制點按幾何尺寸不變的原則搬到基準面，即可形成展開圖。
  5. As a separate system, the system of statistics and analysis for the reliability of low - voltage user records reliability datum of every low - voltage user by gathering terminals, collects and deals with these datum with the technique of low - voltage power line carrier by lumped instrument. last, the datum in the lumped instrument are read in the database of the master station computer by telephone network

    低壓用戶可靠性統計與分析系統作為獨立系統，以低壓臺區為單位，通過採集終端記錄每個低壓用戶的可靠性數據，再採用低壓載波由集中裝置對這些數據進行集中並處理，主站計算機以電話網路撥號的方式將集中器中的數據讀入數據庫。
  6. 2. through using for reference main research methods of high - speed wheel - rail railway line ' s main technique criteria, this paper studies main technique criteria of maglev railway line, and brings forward some advised datum of magelv railway line

    通過借鑒高速輪軌鐵路線路平縱斷面設計標準的主要研究方法，對高速磁浮鐵路線路平縱斷面設計標準進行研究，提出了一些高速磁浮鐵路線路設計的主要參數建議值。
  7. The emphasis is about the metal line reliability, contact reliability, gate oxide integrity, and hot carrier injection in test. based on the test datum, the reliability of 1. 0 m process on single failure mechanisms is evaluated, and all the test structures are explained

    測試內容上著重介紹了金屬化完整性測試、氧化層完整性測試、連接完整性測試和熱載流子注入測試，根據測試數據，對1 . 0 m工藝線單一失效機理的可靠性進行了評價，對不同測試結構的作用進行了說明。
  8. 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） 。
  9. Although there are many literatures describing ultrasonic detector for traffic flows, none of the same category has referred the techniques applied in the design herein such as multi - sensor construction, automatically establishing datum line regardless of suspension height, digital filtering and multi - lane detection as well as measuring length of motorcade

    目前有關超聲波車流檢測器的文獻較多，但本設計中採用的多探頭結構、自動標定超聲波探頭的架設高度、數據濾波以及多車道測量和檢測車隊長度等技術在同類設計中未見使用。
  10. Through using for reference main research methods of high - speed wheel - rail railway line ' s main technique criteria, this paper studies main technique criteria of maglev railway line, brings forward some advised datum of magelv railway line, and puts up dynamical analysis with computer

    本文主要是通過借鑒高速輪軌鐵路線路平縱斷面設計標準的主要研究方法，對高速磁浮鐵路線路平縱斷面線形和設計參數值進行研究，提出了一系列設計參數建議值，並在計算機上進行了動力學檢算。
  11. 3. according to these advised datum of magelv railway line, this paper carries out dynamical analysis with computer, analyses results, and puts forward some reference suggestion

    對提出的高速磁浮鐵路線路設計的參數建議值，在計算機上進行動態分析，並對計算結果進行研究，提出一些參考建議。
  12. This article determine the location and transporting datum, and the machining step and method of various machining surface, deciding the machining procedure, compiling the machining process sheet, and making the cycle analysis according to the design principle of the production line, together with the process feature of the 4g1 cylinder block

    本文根據生產線設計原則，結合4g1缸體的工藝特點，確定了定位和輸送基準及各個表面的加工方法和加工步驟，確定了加工工藝流程，編制了機械加工工藝卡並進行了節拍分析。
  13. 12 zhang d, shu w. two novel characteristics in palmprintverification : datum point invariance and line feature matching. pattern recognition, 1999, 32 : 691 - 702

    在掌紋驗證和辨識中，基於小波能量特徵的方法分別達到了99 . 24 %和99 . 45 %的精度，這些結果優于其他的掌紋識別方法。
  14. The error reasons of low resistance measurement are studied, the theory of removing line resistance error proves to be right with time - domain analysis method and frequency - domain analysis method, and the results proved to be true by the experiment datum with the statistics method

    研究了低電阻檢測時產生系統誤差的原因，分別用時域和復頻域兩種方法分析了在低電阻檢測時消除附加電阻誤差的原理；並通過兩組實驗數據用數理統計的方法驗證了附加電阻誤差影響已經被消除的結論。
  15. Hangzhou linan hua sheng biaoye the production factory rectifies names in 2000 to be founded, the complete technical management personnel by the original zhejiang linan wristwatch bolt and nail factory and the linan puncture accessories factory two factories apexes combination, the factory has the state - owned business management management foundation quality, observes the formulation quality to guarantee requests lot the qualified determination criterion for the datum investment manufacture puncture accessories production line and the bolt production line, take the fine city prestige, forms a complete set as the domestic and foreign clocks and watches company

    杭州臨安市華盛華盛表業製品廠於2000年正名成立，全部技術管理人員由原浙江臨安手錶螺釘廠和臨安穿刺飾品廠兩廠頂尖組合，工廠具有國有企業管理經營基礎素質，遵守制定品質保證要求lot的合格判定準則為基準投入製造穿刺飾品生產線和螺釘生產線，以精城的信譽，為國內外鐘表公司配套。
  16. In this paper, the problems existing in the design, manufacture and use of the gauge groove and the corresponding prove method, are discussed. then it introduces the groove method which bases on the groove center as the datum and uses line depth to control line width

    論述了刻線量規設計、製造、使用中存在的問題和改進方法，並介紹了以刻線中心為基準，以線深控制線寬的刻線方法。
  17. Online apparatus realize 24 hours continuous real - time online monitor of water quality and register the status of the apparatus. it has favorable man - machine interface too. long - distance monitor software gains all kinds of datum through more than one kind of communication method from on - line apparatus

    在線監測儀器可連續、實時地採集廢水的各種參數以及記錄儀器本身的運行狀況，並具備良好的人機界面；遠程監控軟體可利用多種通訊方式採集廢水在線監控儀器得到的各類監測數據，根據實時分析得出的結果，可以及時地對現場的廢水在線監控儀器進行遠程控制。
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