datum mark 中文意思是什麼
datum mark
解釋
【測】基（準）點。-
During construction of donghai bridge of yangshan deep - water port, bedrock bench mark, which is an important surveying datum mark, played an important part in control survey and elevation transmission
摘要基巖標是重要的測量基準設施，在洋山深水港東海大橋的工程建設中發揮了控制測量與高程傳遞的重要作用。 -
Phase datum mark
相位基準標記 -
To use the athwart gradient protection which takes the end of dam as the datum mark will reduce the digging depth of the stilling basins is reducing, and increase the energy dissipation rate
採用以壩體末端為基準面的壩體逆坡防護時，消力池挖深減小，消能率提高，壩面平均流速減小，壩區防護難度降低。 -
Fourthly, according with the analyzing of flow measurement, we research the main problems needed to be solve in the process of measurement, such as analysis and measurement of the internal resistance, selection of excitation frequency, stable signal datum mark and restraining common mode interference, restraining for serial mode interference and working frequency interference ; transporting and shielding the flow signal, constant current excitation and magnetic field equalizing, flow measuring
第四，根據對流量測量問題分析的，深入研究了設計過程中需要解決的主要問題。如內阻分析與測量;勵磁頻率的選擇;穩定信號基準點與抑制共模干擾;串模干擾與工頻干擾抑制;流量信號傳輸與屏蔽;恆流勵磁與磁場補償;流量測量點的選擇等。 -
It not only gains the physical contrastive datum mark, but also improves the blm stability. cyclic voltammetry is used to study the characteristic of blm attached to metal surface, as the forming of blm, the voltammetric characteristics of blm, the selection of ion and measurement of different ki concentration
就以上提出的處理方法，採用循環伏安法詳細研究了金屬表面所覆blm的基本性質，如：膜形成液的配製、膜的形成、膜電阻、膜的伏安特性、膜的擊穿電壓、離子的識別性及對不同濃度的碘化鉀溶液的測試。 -
According to the system ' s operational order, this paper explains how to solve some problems in the correction system, for instance, successively displaying autocad files, finding datum mark, drawing compartmentalization, view recognizing, scale consistency, orientation consistency, processing simplified means and displaying correcting results this thesis is supported by northwestern polytechnical university " electronics teaching material budget
本文依照批改系統的工作順序，闡述了解決盤蓋類作業批改系統的技術問題，重點表述了作業圖連續顯示、基準點定位、區域劃分、視圖識別、方向一致化、比例一致化、簡化畫法處理以及結果顯示方法的處理方法。 -
One windows nt server and one set of datum processors set up the real time achievement database server, the server adopts windows nt 4. 0 as operating system, ms sql 7. 0 as database management system, through tcp / ip achieving visit the server. visual basic 6. 0 was adopted to develop the terminal software, the system altogether includes affairs reminding subsystem, sportsmen dividing into groups subsystem, referee giving a mark subsystem, achievement calculate subsystem and achievement issue subsystem, 6 subsystems. at the same time, the systematic security divide into server operating systems security, database management system security, client terminal software security, and network security as well
該系統採用兩層的c s結構： windowsnt服務器、一臺數據處理機建立了處理實時成績信息的數據庫服務器，服務器windowsntserver4 . 0作為操作系統， mssqlserver7 . 0作為數據庫管理系統，並通過tcp ip協議實現對server的訪問；採用visualbasic6 . 0程序設計語言作為開發工具研製了系統終端軟體，共包括事務提醒子系統、運動員分組管理子系統、裁判員評分子系統、成績計運算元系統、成績發布子系統、成績瀏覽子系統等6個子系統；同時將系統的安全機制分為服務器操作系統的安全機制、數據庫管理系統的安全機制、 client端應用程序的安全機制和網路的安全機制；由於c s系統中影響系統性能的因素主要包括client 、網路、 server 、數據庫和應用系統；在「花樣輪滑評分系統」中充分考慮了這些因素，從數據分佈、數據庫系統配置等方面來提高系統的性能；並從系統運行、數據庫維護兩個方面考慮系統的維護問題。
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