查询词典 abstraction operator

A system may be composed of many levels of abstraction and many phases of operation, each with its own software architecture.

一个系统可能由许多层次的抽象和许多阶段的行动中，每个国家都有它自己的软件架构。

The reaction of benzophenone's excitation and active hydrogen-abstraction is a typical photo-reduction reaction; it has been widely applied to surface photo-grafting and photo-polymerization.

二苯甲酮在紫外光照下激发并夺取活泼氢的反应是一个典型的光还原反应，被广泛应用于表面光接枝及光聚合领域。

Abstraction :This paper analyzes the principle of Butterworth digital filter,discuss bilinear transformation method of filter design;record a piece of voice by Microsoft voice recorders, carry on its a time-domain analysis, spectral analysis;then design a specified Butterworth band-stop filter based on the theory of bilinear transform,analyze the filter by the tool named Fvtool;and filter the voice signal acquired by voice recorder.finally compare its characteristics of frequency domain and time domain,study the applications of Butterworth filter in digital signal processing ,in particular in signal denoising.

本文分析了巴特沃思数字滤波器的原理，探讨了双线性变换法设计滤波器的方法；用微软录音机采集一段语音，对其进行了时域分析，频谱分析；然后使用双线性变换法设计了一个的巴特沃思带阻滤波器，并且使用fvtool对设计的滤波器进行分析；然后利用该滤波器对采集的语音信号进行滤波。最后对比滤波前后的语音信号的时域和频域特性，研究了巴特沃思滤波器在信号处理尤其是信号滤波去噪方面的特性和应用。

Thus all in life becomes the abstraction of this"bloodsucker", becomes the stocktaking of its increasing greedity.

因此，当代人监审自己的经济方式和经济价值观，反思存在的危机，重建存在的家园已刻不容缓。

It is the inspissations and abstraction of nature, achieved the art bourn of which just like from nature, although it is human being.

中国园林源于自然而又高于自然，是大自然的浓缩和提炼，达到了虽由人做、宛若天开的艺术境界。

Thus, different levels of abstraction may characterize the concept of theory.

因此﹐抽象的不同层次可能描述理论的概念。

In the process, chloranil firstly was excited to singlet state and then a labile hydrogen abstraction interaction between singlet chloranil andβ-diketones was involved to form singlet stable neutral radical pairs.

光照作用下，四氯苯醌首先跃迁至单线态，然后夺取β二酮类化合物分子中的活泼氢，形成单线态中性自由基对。

The other philosophical base of new classical economics was the abstraction of humanity.

新古典的另一哲学基础是对人性的抽象化。

Secondly, the approach of componential analysis has been used to explore the mechanism and the nature of the reflective abstraction from internal cognitive processing.

在学习结束一月后，我们对实验被试进行了"合取"任务的成分分析研究，取得其认知操作方面与对照儿童之间的差异信息。

Teaching tactics should be from concreteness to abstraction in a spiral way.

七、 教学策略，应以螺旋模式由具体到抽象。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？