mixed data type 中文意思是什麼
mixed data type
解釋
混合數據類型-
When dicussing reliability design and reliahbaiiy ensuring methods, a new reliability calculating model of petroleum logging tools is presented, reliability assurimg technologies should be taken in petroleum logging tools and their using approaches are presented and stated from electricity design and mechanical design, reliability system model of petroleum logging tool is set up according to the latest reliability theory, reliability indexes of petroleum logging tool and their acquiring ways are discussed, the reconmended reliability indexes ( mwture, nolwnm, mtbf, mttf ) of petroleum logging tool are presented : the mean working time under rated error ( mwture ) of the new tool is obtained through experiments. when studying data processing methods, the property of gamma - ray signal is stated and the type of it ' s measuring error is examined using statistical method, the basic theory of digital filtering and the basic situation of digital filtering methods are introduced and analyzed, the factors affecting digital filtering effect to gamma - ray signal and the effect of digital filtering to logging curve are analyzed, the evaluting criteria ( rvi, rmse, sfi ) of digital filtering effect are set up from two aspects, named as real value acquiring of steady section and the formation boundary checking and processing, the related filtering methods and examining methods are given out. the design methods of digital filter used to process gamma - ray signal are discussed, the mixed filtering scheme of natural gamma - ray log is presented, the realization ways are discussed. the selective filtering system and it ' s realization flow are given out through quantitive reseaching to part of digital filters, three new filtering sheme will be used to process gamma - ray signal in era2000 logging system
在探討可靠性設計與可靠性保障技術時，提出了石油測井儀器的可靠性計算新模型，從電氣和機械兩個方面，提出並闡述了應採用的可靠性保障技術及其使用方法：根據最新可靠性理論，建立了石油測井儀器的可靠性系統模型，探討了石油測井儀器的可靠性指標及其獲取途徑，提出了推薦使用的石油測井儀器可靠性指標（ mwture ， nolwnm ， mtbf ， mttf ） ；通過試驗，得到了所設計儀器的穩定工作時間（ mwture ） 。在研究數據處理方法時，闡述了伽瑪信號的特徵，對測量誤差類型進行了統計檢驗；介紹了數字濾波的基本理論、數字濾波方法的概況，並進行了分析；對伽瑪信號數字濾波效果的影響因素及其對測井曲線的影響進行了基本分析；從獲取平穩段真值、地層邊界的檢測與處理兩個方面，建立了數字濾波效果的評價準則（ rvi ， rmse ， sfi ） ，給出了相應的數字濾波方法及效果評價方法；探討了自然伽瑪信號數字濾波器的設計方法，提出了適合自然伽瑪測井的混合濾波方案，探討了混合濾波方案的實現途徑；通過對部分數字濾波方法的定量研究，給出了靈活可選的數字濾波系統構成及實現流程；提出的三種濾波方案，將用於era2000成像測井系統，對自然伽瑪測井數據進行濾波處理。 -
When a column appears to contain mixed data types, especially numeric data mixed with text data, the driver decides in favor of the majority data type, and returns null values for cells that contain data of the other type
如果推測出列可能包含混合數據類型（尤其是混合了文本數據的數值數據時） ，驅動程序將決定採用佔多數的數據類型，並對包含其他類型數據的單元返回空值。 -
According to the trouble information, the concrete trouble type is judged by using the mixed systematic knowledge base on the symptom fact database, traditional expertise experiences diagnosis rule and data mining. and the diagnosis conclusion and maintenance information are displayed on the remote customer browser
利用基於徵兆事實庫、傳統專家經驗診斷規則和數據挖掘診斷規則的混合系統知識庫，根據故障信息判斷出具體的故障類型，並將診斷結論和維護參考信息顯示在遠端客戶瀏覽器上。 -
Abstract : the structure and function of new type automatically mixed flouw system composed by context two levels of computer were related, the automatic data capture, dynamic display of control process, control pattern and algorithm of mixed flour for the system were set forth. then, it is high reliability and good maintainability to use the structure of two levels of control systems
文摘:敘述了由上、下兩級計算機構成的新型微機自動配粉系統的結構和功能，對該系統的自動數據採集、控制過程動態顯示、控制模式和配粉演算法進行了闡述，採用兩級式控制系統結構，可靠性高，維護性好。
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