null function 中文意思是什麼

null function 解釋
零函數
  • null : adj 1 無效力的，無束縛力的。2 無效的，無用的，無益的；無價值的。3 沒特徵[個性]的，沒表情的。4 〈...
  • function : n 1 功能，官能，機能，作用。2 〈常 pl 〉職務，職責。3 慶祝儀式；（盛大的）集會，宴會。4 【數學】...
  1. Here we found g proteins also function in leaf, silique development and the yield of pollen microspore. we observed several traits or characters in the offsprings of gpal, agbl null mutation and gpa1 overexpression lines and found that the width of mutants " lamina is larger than that of the wild type, whereas the lamina length, petiole length and rosette diameter is smaller than the wild type, the ga overexpression lines is different from the mutants ; the silique length and the pedicel length is larger in mutants than that of wild type, and slightly smaller in overexpression lines than the control ; the morphometric character in silique tip is different in gpal from agbl mutants ; the yield of pollen microspore is larger in null mutants than wild type whereas smaller in overexpression lines

    實驗中我們跟蹤觀察了多代異三聚體g蛋白a亞基超表達轉基因植株及a ， p亞基缺失突變體的表型特徵，發現突變體的葉片寬度大於對應的野生型，葉片長度，葉柄長度及蓮座直徑小於野生型，而超表達植株的上述某些特徵與突變體相反; gp時突變體的長角果長度，花梗柄部長度大於野生型，而超表達ga植株種英則略小於對照; gpal突變體長角果尖端未出現咭乙i突變體的特徵: gpal ，口gbl突變體花粉生成量大於野生型，而超表達ga植株的花粉生成量則略小於對照。
  2. The targeted disruption of mouse rbp - j revealed that homozygous null mutants die before 10. 5 days postcoitum ( dpc ) with various abnormalities, including growth retardation and defects in the central nervous system and somites. in order to assess the function of rbp - j, a yeast two - hybrid screening using rbp - j as a bait protein was performed and a nuclear matrix protein, mint was isolated

    Sdpc胚胎和人的hela細胞cdna文庫中篩選到一個可以與rbp斗相互作用的新蛋白ram7 ，后發laram7與mmt （ msxz inter肌tingnucleartargetprotein ）為同一蛋白。
  3. They do not function in areas where psionics and / or magic is suppressed or negated ( such as an antimagic field or a null psionics field )

    這些能力在靈能和/或魔法被壓制或消解（例如「防魔法力場」和「反靈能力場」 ）的區域無法生效。
  4. Is a constant, null, or a system function value

    可以是常量、 null或系統函數值。
  5. An aggregate function invariant to null values does not consider null values in the group while it is evaluating the aggregate value

    對空值固定不變的聚合函數在求聚合值時不考慮組中的空值。
  6. This warning indicates that the node passed into the function might be null

    該警告指示傳遞給函數的節點可能為空。
  7. The sum function returns the total sum of a column in a given selection. null values are not included in the calculation

    使用sum函數可以返回給定的選擇中列的所有記錄值的累計合。 null值不包括在內。
  8. The limiting distribution of test statistic under null hypothesis is proved to be the function of a standard brownian

    在原假設下證明了統計量的極限分佈是標準brown運動的泛函。
  9. The aggregate function should be invariant to null values

    聚合函數應該對空值固定不變。
  10. Warning c6277 : null application name with an unquoted path in call to function : results in a security vulnerability if the path contains spaces

    警告c6277 ：在對< function >的調用中使用的null應用程序名含未加引號的路徑:如果路徑中包含空格將導致安全漏洞
  11. The avg function returns the average value of a column in a selection. null values are not included in the calculation

    使用avg函數可以返回所有選中列值的平均值。 null值不包括在內。
  12. If not a null reference nothing in visual basic, the function sets

    如果不為空引用（在visual basic中為nothing ） ，則此函數將
  13. The grouping function returns 1 when an expression evaluates to null, because the column value is null and represents the set of all values

    表達式取值為null時， grouping函數返回值1 ，因為該列值是null且表示所有值的集合。
  14. The grouping function returns 0 when the corresponding column, whether it is null or not, did not come from either the cube or rollup options as a syntax value

    當相應的列（不管是不是null ）不是來自cube或rollup選項的語法值時， grouping函數返回值0 。返回值的數據類型為
  15. Note : 1. outer connection start, stop, null function see random wiring diagram

    電流420ma注: wp224不能選擇電流輸出
  16. The conventional way to have a reference refer to no - object is to provide an explicit singleton representing by convention a null object which often serves as a default argument to a function parameter

    （讓引用引用空對象的常規方式是提供顯式的單一實例，按約定，該實例表示一個經常充當函數參數的默認變量的空對象） 。
  17. It redefines the between - class scatter by adding a weight function according to the between - class distance. therefore, it can separate the classes as much as possible. at the same time, it projects the between - class scatter into the null space of the within - class scatter that contains the most discriminant information

    新方法重新定義了樣本類間離散度矩陣，在原始定義的基礎上增加一個由類間距離決定的可變權函數，使得在選擇投影方向時，能夠更好地分開各個類的樣本。
  18. Position in argument list, or null for function return value

    在參數列表中的位置，對于函數返回值為null 。
  19. Position in the argument list, or null for a function return value

    在參數列表中的位置，對于函數返回值為null 。
  20. Is non - null, the function returns the string length in

    不為null ，則該函數返回*
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