未定義變量 的英文怎麼說

中文拼音 [wèidìngyìbiànliáng]
未定義變量 英文
undefined variable
  • 未 : Ⅰ副詞1 （沒） did not; have not 2 （不） not Ⅱ名詞1 （地支的第八位） the eighth of the twelve ear...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 義 : Ⅰ名詞1 （正義） justice; righteousness 2 （情誼） human ties; relationship 3 （意義） meaning; si...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  1. Abstract : events contributing to the establishment of statistics the science of data and its chemical branch are epitomized. as the new chemical branch named chemometrics or chemstatistics has been disputed in the circles of chemistry for a long time, reasons for adopting chemstatistics are given, which is defined as the science of gathering or generating, describing, summarizing and interpreting the data concerned to acquire new chemical knowledge or information. the fact that many traditional statistical methods, such as significance tests, analysis of variance, regression and correlation, and some others not usually considered statistical, such as model building, monte carlo method, fourier transformation, artificial nerval networks and pattern recognition, each contains one or more of the five connotations of statistics is expounded. the regular pattern that a chemstatistician grows up is approached. the urgent task is to include chemstatistics in the undergraduate or graduate curriculum of chemistry specialty. the goal of the project is to nurture chemists who know statistics

    文摘:本文追溯了統計學發展、建立中的大事，陳述了它的定義及其化學分支發展、建立的梗概；鑒于化學界對該新興化學分支學科的名稱長期存在爭議，提出了以化學統計學而不以化學計量學為該學科名稱的理由，把化學統計學定義為一個研究有關數據的收集或產生、描述、分析、綜合和解釋，以獲得新化學知識或信息的學科；闡明了許多公認屬于統計學的方法，如顯著性檢驗、方差分析、回歸和相關，以及一些尚未認定屬于統計學的方法，如模型建立、蒙特卡羅方法、傅立葉變換和人工神經網路，都含有統計學5個內涵中的一個或多個；探討了化學統計學家成長的模式，認為當務之急是把化學統計學納入化學專業的教學計劃，以培養懂統計學的化學家。
  2. Use this command to check the current value of a variable, property, or other expression for which you have not defined a watch expression

    使用該命令可檢查尚未為其定義監視表達式的變量、屬性或其他表達式的當前值。
  3. Explains the concept of undefined values, how to determine if a variable or property is undefined, and how to undefine variables and properties

    解釋未定義值的概念、如何確定變量或屬性是否是未定義的，以及如何取消定義變量和屬性。
  4. The nullable type modifier enables c to create value - type variables that indicate an undefined value

    可空類型修飾符使c #能夠創建表示未定義值的值類型變量。
  5. They hold only one piece of data : a string, a number, the undefined value, a reference to another variable

    它只保存一段數據：一個字元串、一個數字、未定義的值以及對另一個變量的引用。
  6. Undefined variables in a snippet should be highlighted

    代碼段中的未定義變量應突出顯示。
  7. Will be referencing undefined variables

    會引用未定義的變量。
  8. Instead of checking for a default compound value, you can also catch the access to an undefined variable

    不用再檢查默認的復合值，您也可以捕獲對未定義變量的訪問。
  9. In many programming applications, most notably database interactions, variables can exist in an undefined state

    在很多編程應用中（最突出的是數據庫交互） ，變量可存在於未定義的狀態。
  10. This dissertation is based on the introduction of the power indstry of the history of the nantong city and is according to the development and change of the power industry from 1991 to 2000land also to the reality of the working experience of the administration of the power industry of myself, it make great efforts to analysize anc research the long term and middle - short term forecast of the demand of the nantong city ( urban, tongzhou county, rugao county ) in the future, and is based on the analysis of its character, it draws a conclusion of making value, and uses the thinking of the methods of " the professional danamics and linear tropic ", and according to the answer of the analysis, it uses the ahp method to compare the economics of the construction of the power industry of different areas, and based on the fundamental conclusion, it makes out the methods and countermeasure of the power construction of different areas, and gets a good effect of forecast. so, it will be great instructive and helpful to the forecast and administration of the power industry in the reality, and to fill in the defects of " paying too more attention to the analysis of the character rather than the value, and mainly depending on the experience to make decisions "

    本文在介紹南通市電力工業發展歷史狀況的基礎上，從南通市91年2001年電力工業發展變化情況和歷年本人從事的電力管理工作的實際出發，著重分析和研究了南通市（市區、通州市、如皋市）未來長期和中短期的電力需求預測，在對其進行定性分析的基礎上，提出了量化的設想，並將系統動力學和多元回歸的思想分別應用於電力需求的長期和中短期預測，針對分析的結果，利用層次分析法比較了電力建設不同措施的經濟性，在得出初步結論的基礎上，提出了分地區電力建設的對策與措施，取得了較好的預測效果，對實際的電力預測和管理工作有很大的指導意義和幫助作用，從而彌補了實際工作中「注重定性、忽視定量，主要依靠經驗判斷」的不足，對促進今後南通市電力管理工作有很大的幫助。
  11. A variable may be undefined

    可能未定義變量。
  12. Nullable types allow a variable to contain a value that is undefined

    可空類型允許變量包含未定義的值。
  13. This means that the value of a local constant is undefined until the constant declaration statement is reached and that a local variable is undefined until the variable is assigned to in the function

    這就意味著在到達常數聲明語句前局部常數值是未定義的，在函數中分配變量前局部變量是未定義的。
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