exponential
英 [,ekspə'nenʃ(ə)l]
美 ['ɛkspə'nɛnʃəl]
助记提示
1. 指数：ex- "upward" + pon- + -ent. 表明指数放在既在上面又在外面的位置上。
2. exponent + -ial(复合后缀：-y, -al).
3. -ial在有些单词的后面则是为了使-al后缀更合理、更合适地与-t, -c等字母结尾的单词更有效的粘合在一起。
英文词源
- exponential (adj.)
- 1704, from exponent + -ial. As a noun, from 1784. Related: Exponentially.
双语例句
- 1. The policy tried to check the exponential growth of public expenditure.
- 该政策试图控制公共开支的迅猛增长。
来自辞典例句
- 2. Populations tend to grow at an exponential rate.
- 人口趋向于以指数比率增长.
来自中级百科部分
- 3. The logarithmic function is defined as the inverse of the exponential function.
- 对数函数是作为指数函数的反函数来定义的.
来自辞典例句
- 4. The envelopes of the strain peaks is an exponential function.
- 应变峰值的包络线是一个指数函数.
来自辞典例句
- 5. The frictional dissipation will introduce an exponential decay.
- 摩擦耗散可导致指数式的衰减.
来自辞典例句