| 1. | Recently , a new mathematical technique known as wavelet transform ( wt ) has become the focus of many science areas
摘要近年来，一种被称为小波变换的数学理论和方法成为众多学科关注的焦点。 |
| 2. | This course gives a survey of cryptography and other mathematical techniques that have been developed in the last thirty years for tackling the security problem
本课程将回顾30年来为解决这一问题而发展起来的密码学和相关的数学技术。 |
| 3. | The disadvantage of it is lacking a formal semantics and difficult to apply , directly , mathematical techniques on uml models for system validation
但uml的缺点是难以直接用数学工具对uml模型进行检验，另外uml在语义方面也存在一些不足。 |
| 4. | Quantitative approaches to forecasting involve the use of statistical or mathematical technique ; they are the approaches used by theoreticians and professional planners
定量分析的预测方法需要使用统计和数学技术,主要由精通理论和专业的计划者来进行 |
| 5. | To do so , astronomers resort to fourier analysis , a mathematical technique that allows them to break a complex curve into a set of simple ones called sine waves
为了达到这个目的，天文学家们采取了傅立叶分析方法? ?这是一种数学研究方式，它允许天文学家们将一个复杂的曲线图分解位一些叫做“正弦波”的简单曲线。 |
| 6. | At first , according to the fundamental q - switch equation , we analyze the q - switch system , including active q - switch and passively q - switch . we have derived simple analytic expression for all of the parameters of optimally coupled laser by using the mathematical technique of lagrange multipliers
首先我们从速率方程出发对调q激光器的理论进行了分析研究，建立了主动调q和被动调q的理论和q参数的优化设计，并对声光调q以及被动饱和调q的特性和模型进行了优化。 |
| 7. | Another trend was the increased access to computers powerful enough to accommodate the sophisticated mathematical techniques involved in dfa . a third trend was the adoption of similar types of analyses in banks and other financial institutions . the general approach of dfa was applied first by insurers in europe , then in canada and the united states
对保险公司的精算师和财务总监而言,预测未来是其重要职责,而在美国、加拿大等保险业发达国家的精算理论和实务界讨论热烈的“动态财务分析”方法,无疑为精算师们提供了更新更全面的预测方法和模型工具。 |
| 8. | The research can offer some important references to the population ecology of endangerous plant , too . based on the dates of two different circumstances , two standard life tables of form . taais chinensis var . mcarei population are founded by mathematical technique according to premising with " space deducing time " , and the curves of survival rate , mortality rate and killing power were drew . the results showed both of the survival curves of population appeared to be a type of deevey - iii and the high mortality of seeding is one of the important reasons which caused taxus chinensis var . mairei to be endangered , which badly limited the enlargement of form . taxus chinensis var . mcarei population
由于南方红豆杉无解析木，因而以“空间推时间” 、 “横向导纵向”方法，将林林依胸径大小分级，以立木级结构代表年龄结构，采用分段匀滑技术，对两个不同生境的南方红豆杉种群编制特定时间生命表，绘制存活曲线，结果表明不同生境的南方红豆杉种群的存活曲线均趋于deevey -型，两地差异较小，幼苗死亡率极高，不同生境的幼苗死亡率均达到96以上。 |
