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datum level 基準水平面。

datum line

To achieve information integration in manufacture process , this paper , with reference to dnc , researches into manufacture process information integration from 3 aspects : data level , function level , application level , presents the management information integration framework ( miif ) based on distributed control technology , builds meta - agent and application agent by regarding agent as an entity having special behavior ability and specific action objective , establishes agent control model , and then gives the collaborative solution . with field - bus technology and agent technology , the dnc system model based on agent technology is established which shows a efficient way of device integration . a general model of device integration is set up , and an agent model based on soft plug - in technology is built 該模式包括面向制造過程的車間生產管理與控制的上層結構和面向車間設備的加工控制的下層結構;為實現制造過程信息的集成,本文從三個層面:數據層面、功能層面、應用層面上闡述了車間制造過程信息的集成方式,并借鑒dnc思想,建立了基于分布式控制技術的制造過程信息集成框架( miif ) ;采用面向對象方法,對miif中的代理體從定義抽象、結構和功能等進行了深入研究;從知識層面上的三個層次:語言規范、會話機制、問題域對miif的多agent協作進行研究,建立了多agent交互的形式化模型。

The registration results of computed tomography ( ct ) and magnetic resonance ( mr ) are validated to be subpixel based on mutual information . the fusion of registering ct and mr images by data level fusion or feature level make the information complementarity each other , which realized the anticipative intention 對配準后的ct和mri圖象,通過象素級和特征級的融合,較好地實現了兩種成像模式的信息互補,達到了預期的實驗要求。

On data level , it is firstly explored fusing signature data from sparse - band collocated radars to obtain wider band target frequency response . the most difficult problem which restricts the fusion process is the lack of mutual coherence between the various radar subbands 在數據層,首先探索了對多個配置在同一地方的不同頻帶雷達測得的目標頻率響應進行融合,以獲取更寬頻帶目標頻率響應的方法。

Radar target recognition ( rtr ) is very valuable for military application . the performance of rtr can be improved greatly by identity fusion . this dissertation deals with the rtr using data level and decision level fusion 雷達目標識別具有巨大的軍事應用價值,通過身份融合技術能提高雷達目標識別的性能,本文主要研究數據層和決策層融合雷達目標識別。

Apply the facing object technology to set up the product data structure , attribute , configuration , edition and bom information model by analyzing the product data level , the object and engineering characteristics 采用面向對象技術,通過分析產品數據的層次、對象特性和工程特性,建立產品數據的結構、屬性、構型、版本、 bom信息模型。

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。

As a best practice , enforce password rules at the data level in the membership provider . the 一種最佳做法是在成員資格提供程序中的數據級別強制使用密碼規則。

Data level source 數據位階電源

Data level integration 數據層集成

A fast scan does not read the leaf or data level pages of the index 快速掃描不讀取索引的葉級或數據級頁。