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derivation
  • 英语发声
  • 美语发声
  • n. 起源;推导;词源,派生词;导数
  • 网络释义

    1、[数]求导
    一种新的电网频率测量方法_电子行业学术文章_质量学术文章_电子质量E周刊 关键词: 电网频率;多重相关法;求导 [gap=536]Key words: power system frequency;multi-layer correlation;derivation
    2、[科技]派生
    派生(Derivation):指在词根的基础上加前缀或后缀所构成另一个词。
    3、引出
    ... deputy n.代办别人代理人 a.副的 derivation n.引出;起源;衍生 descendant n.子孙,后裔;弟子 ...

    短语

    derivation conduit引水道

    derivation block微分单元

    derivation step推导步

    theoretical derivation理论演绎

    leftmost derivation最左推导;[计] 最左派生;最左端导出式;最左导出

    Derivation proceeding溯源诉讼程序;溯源程序;派生程序

    characteristic derivation特阵导

    derivation key衍生金钥

    专业释义

    生物学
    • 分离

      Results.1 Derivation and cultivation of hES cellsWe obtained 9 blastocysts from frozen thawed human cleavage stage embry-os,and 7 ICM were isolated by immunosurgery,and established two human era- bryonic stem cell lines.

      结果一、hES的分离与培养1.20个解冻卵裂期胚胎,获得9个囊胚,分出完整的内细胞团共7个,从7个内细胞团培养出2个胚胎干细胞系。

      参考来源 - 人胚胎干细胞的分离、培养及建系
      衍生
      诱导;衍生物
    计算机科学技术
    • 推导

      The variational inequality model is established to describe the selfish routing with oblivious users. The upper bound of price of anarchy is derived by analytic derivation.

      建立刻画含刻板用户的Wardrop路由博弈的变分不等式模型,运用解析推导方法得到对应路由博弈调和率的上界。

      参考来源 - 特殊路由博弈的调和率研究
    数学
    • 导子

      We describe the results as follows:In chapter one,we recall the notion of skew derivation Lie algebra.

      全文分三章:在第一章,我们先引入斜导子李代数的概念。

      In second chapter, we discuss the problems of estimating in the derivation of bounded functions.

      第二章研究有界正则函数导数的估计问题。

      参考来源 - 复杂网络的统计系综理论及其应用研究
    经济学
    • 衍生

      Asset Backed Securities (ABS), as an important derivation of financial tool, has great potentiality in international capital market.

      资产证券化 (ABS)作为一种重要的金融衍生工具 ,在国际资本市场上有着巨大的发展潜力。

      参考来源 - 资产证券化对商业银行和投资银行的影响
    语言学
    • 派生

      Obviously, the development of the highest degree adverbs manifests the laws of grammaticalization: accumulation and supplanting, derivation and division, conservativeness and imbalance.

      可见,极性程度副词的发展完全体现了累积与排挤、派生与分化、保守性与不平衡性的演化规律。

      The current research is targeted at defining "what is said" and the mechanism for its derivation. On the basis of this definition,categories of utterance meaning are to be made and related notions such as reference,intention,truth,proposition are expounded.

      本研究的对象是“所言”及其推导机制,并在此基础上划分话语意义的类别,确定指称、意向性、真值、命题等概念。

      参考来源 - 人类语言交际中的“所言”
    化学
    • 衍生

      The relative aboundance of fragment ions of adduct ions are quite different from each other. On the basis the sugar epimers are distinguished without derivation.

      产主的加合离子的碎片峰相对丰度的差别,不经衍生化,可直接区分糖的差相异构体。

      参考来源 - 液相色谱—大气压电离质谱在单糖和寡糖结构分析中的研究
    机械工程
    • 求导
      导出

    英英释义

    derivation [ ,deri'veiʃən ]

    n.
      the source or origin from which something derives (i.e. comes or issues)

      "he prefers shoes of Italian derivation"; " music of Turkish derivation"

      (historical linguistics) an explanation of the historical origins of a word or phrase

      同义词:derivingetymologizing

      a line of reasoning that shows how a conclusion follows logically from accepted propositions (descriptive linguistics) the process whereby new words are formed from existing words or bases by affixation: `singer' from `sing'; `undo' from `do' inherited properties shared with others of your bloodline

      同义词:ancestrylineagefiliation

      drawing of fluid or inflammation away from a diseased part of the body drawing off water from its main channel as for irrigation the act of deriving something or obtaining something from a source or origin



    英汉双解大词典

    derivation /ˌdɛrɪˈveɪʃən/ TEM4 (derivations)

    • 1.  

      N-VAR(有变体名词) The derivation of something, especially a word, is its origin or source. 根源(尤指词根) [oft N 'of' n, 'of' adj N]

      例:

      The derivation of its name is obscure.

      它名字的根源起源鲜为人知。