1) cumulative fre-quency
累积频次
2) accumulation frequency distributing
累积频次分布
1.
After pretreatment and statistic analysis,the fatigue load spectrum is compiled through level cross counting and standardized treating according to the standard accumulation frequency distributing,which provides reliable data for estimating the fatigue lifetime,laboratory experiment,and finite element analysis of the motorcycle frame.
测定了可靠性耐久试验道路面载荷样本,经预处理并对测得信号进行了统计分析,采用穿级计数法,根据标准累积频次分布,并经规格化整理,编制了摩托车车架关键部位的疲劳载荷谱,为摩托车车架的疲劳寿命估计、室内模拟试验和有限元分析提供了必要的载荷数据。
3) quadratic exponential cumulative frequency model
二次指数累积频次模型
4) two kinds of accumulation
二次累积
5) repeated integral
累次积分
1.
Nowadays,almost all the general mathematic softwares can t directly calculate double integral,they only can be used to calculate repeated integral,the softwares can t recognize and deal with complicated domain of integration.
目前常用数学软件包无法直接进行二重积分的运算,只能处理累次积分,难以处理复杂的积分区域,文章基于有关数学定理提出一种新型算法,通过对积分区域和边界条件进行判断和处理,实现二重积分与累次积分之间的转换,使常用数学软件包能够直接计算二重积分,从而简化运算过程,提高计算效率。
2.
The solution for the equation is deduced by making repeated integral and substitution of variables.
给出奇异积分方程阿贝尔方程的一种技巧解法,作累次积分及变量替换推出此方程的解式,提出一个注记,拓展了求解积分方程的思路。
3.
This paper using several instances, analyses that the multiple integral and repeated integral are two independent concepts and there is no certain implication between them.
本文通过若干实例说明重积分与累次积分是两个独立的概念,它们的存在性没有必然的蕴含关系,并指出只有在一定条件下它们之间才存在相等关系。
补充资料：频次
1.屡次。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条