vdl 中文意思是什麼

vdl 解釋
可變鉆井負荷
  1. Additional trials on aeronautical telecommunication network ( atn ), surface movement guidance and control system ( smgcs ), electronic flight strips ( efs ), secondary surveillance radar mode s data link and very high frequency data link ( vdl ) are planned for this year

    此外，有關航空通訊網路、地面活動引領管制系統、電子飛行紙條、 s模式的二次監察雷達數據鏈路和甚高頻數據鏈路的進一步試行運作，亦計劃在本年進行。
  2. The time difference curve may confirm the fast formation ; judge the tool ' s centrality ; verify the bonding quality combining with cbl / vdl curves, and also determine the casing collar position, etc

    時差曲線則可以根據時差的大小驗證快速地層；由曲線的變化幅度判斷儀器在井中的居中程度；結合首波的幅度曲線波列的變密度曲線驗證膠結狀況是否良好；利用時差曲線的變化確定套管接箍位置等。
  3. This paper presents the upgrade and modification design of the sl - 3000 model digital - controlled logging system, which consists of two important modules - communication control module and acoustic wave vdl ( variable density logging ) module. the working principle of these two modules, hardware architecture, circuit design and the implementation of the pci interface are also expatiated

    本文介紹了sl - 3000型數控測井系統中兩個重要的模塊? ?通信控制模塊和聲波vdl模塊的升級改造設計，具體闡述了這兩個模塊的工作原理、硬體構成、電路設計以及pci介面的實現。
  4. Vdl garment co., ltd, belonging to a private enterprise, is a typical medium and small - scale enterprise, which focuses on leather garments production for export

    四川vdl服裝有限公司是一家典型的從事皮革服裝加工生產出口的中小型民營企業。
  5. Icao make a standard of very high frequency data link mode 4 ( vdl mode 4 ) on the basis of self - organizing time division multiple access ( s - tdma ), this standard is considered to be one of the basic solutions of aviation mobile communication

    該標準基於自組織時分多路訪問技術，其主要特點是:支持實時應用，採用短消息進行信息交換，並且可以在缺少地面基礎設施的情況下保障空空通信。
  6. Vdl mode 4 is consulted the data link layer of osi reference model, and it provides upper layers with reliable point - to - point connection. because of the particularity of the civil aviation ' s applications, vdl - 4 protocol will support some special application program directly, such as automatic dependent surveillance - broadcast ( ads - b )

    在對協議進行研究的基礎上，本文實現了與廣播式自動相關監視（ ads - b ）應用相關的vdl - 4協議棧的vss子層和lme子層，其中主要包括預約機制、網路接入和同步數據幀的廣播等。
  7. Lubricants ; vb and vc lubricating oils with and without additives and vdl lubricating oils ; classification and requirements

    潤滑劑.有和無添加劑的和型以及型潤滑
  8. Vdl mode 4 adopts the short frame structure to transmit data, the synchronous timing signal of vdl mode 4 is offered by gnss

    本文完成了對vdl - 4協議棧的研究和初步開發的任務。
  9. Vdl mode 4 protocol adopts s - tdma, regards slot as the base unit of data transmission, and manages slots into superframe

    最後，本文實現的vdl - 4協議棧通過對項目的測試實驗和opnet模擬得到驗證。
  10. Based on the theoretical numerical simulation, experimental data of calibration pits, and time - elapsing logging data in cased production pits, a study is made for searching an evaluation method for cementing quality of the secondary interface by variable density logging ( vdl ), and the eigenvalue about the cementing quality of the secondary interface is obtained

    摘要從理論正演數值模擬、刻度井試驗資料和實際生產井時間推移測井資料3個方面，探索用變密度（ vdl ）波形評價第二界面膠結質量的方法，提取反映第二界面的膠結狀況的特徵量。
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