derivative
英 [dɪ'rɪvətɪv]
美[də'rɪvətɪv]
- n. [化学] 衍生物，派生物；导数
- adj. 派生的；引出的
词态变化
复数: derivatives;
英英释意
- 1. the result of mathematical differentiation; the instantaneous change of one quantity relative to another; df(x)/dx
- 2. a financial instrument whose value is based on another security
- 3. (linguistics) a word that is derived from another word;
- "`electricity' is a derivative of `electric'"
英文词源
- derivative
- early 15c. (adj.); mid-15c. (n.), from Middle French dérivatif (15c.), from Late Latin derivat-, past participle stem of Latin derivare (see derive). Mathematical sense is from 1670s.
实用场景例句
- Derivative works are far more complicated.
- 派生作品更加复杂。
辞典例句
- This isn't an entirely new car, but a new derivative of the Citroen XM.
- 这不是一款全新的车，而是雪铁龙XM系列的派生车型。
辞典例句
- A quasilinear equation is one in which the highest - order derivative appears linearly.
- 最高阶导数线性地出现的那种方程是准线性方程.
辞典例句
- The specification of such " derivative boundary conditions " is described in Section 3 - 5 .
- 这种 “ 导数边界条件 ” 的规定描述于 3-5 节中.
辞典例句
- It is interesting and enlightening to consider the derivative of a vector.
- 这对研究矢量的导数来说是重要的,而且富有启发性.
辞典例句
- It is unscholarly and derivative, and raises a lot of unanswered questions.
- 它不象学者所写而且是摹仿的, 并且提出很多不能解答的问题.
辞典例句
- This limit is sometimes called the right - hand derivative.
- 这个极限有时称为右导数.
辞典例句
- The derivative of the step is the impulse.
- 阶梯的导数就是脉冲.
辞典例句
- The vaccine is then mixed with saponin, a soaplike derivative from a South American tree.
- 然后把这种疫苗与一种皂角苷相混合.皂角苷是一种像肥皂的物质,源于南美的一种树.
英汉非文学 - 生命科学 - 癌症与艾滋病
- The difference between an ordinary and a partial derivative was at first not explicitly recongized.
- 通常的导数与偏导数的区别在一开始并未被人们明确地认识.
辞典例句
- Ozone is formed in the reaction, and a nitro derivative of the olefin.
- 在反应中形成臭氧及烯烃的硝基衍生物.
辞典例句
- The name Cambridge is a derivative of the name of the River'Cam '.
- ‘Cambridge’这个名字是 ‘ Cam ’ 河的派生词.
辞典例句
- The actual compound is considered to be a derivative or the parent compound.
- 把实际化合物看作母体化合物的衍生物.
辞典例句
- The derivative of the composite function is the product of the derivatives of the components.
- 复合函数的导数是构成函数的导数之积.
辞典例句
- THE IN VITRO METABOLISM OF HAINANENSINE DERIVATIVE HH 07 A BY RAT LIVER MICROSOMES.
- 大鼠肝微粒体细胞色素P4503A参与吡喹酮A环羟化代谢.
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