1.离散傅里叶变换
2.诊断功能测试
1.Department for Transport
1.The basic idea of DFT is an ansatz, which assumes that any properties of many-body system can be determined by the ground state density.
密度泛函的基础是一个假定：假定一个多粒子体系的任何性质都是基态电子密度的函数。
2.To get a sense of what the DFT does, consider an MP3 player plugged into a loudspeaker.
我们以一个接有喇叭的mp3播放器为例来大体了解一下DFT是什么。
3.Particularly fierce arguments are raging around the Department for Transport (DfT), which must make cuts of 25% or more in its budget.
异常激烈的争论围绕着英国交通部（DfT）进行，因为它必须砍掉25%预算或更甚。
4.Many further incremental improvements have been made to DFT by developing better representations of the functionals .
通过建立更好的泛函表示，DFT正在不断的被改良。
5.It is a new kind of technique that the signals of Coriolis mass flowmeter is processed by means of DFT method.
采用DFT方法处理科氏质量流量计的信号是项新技术。
6.The DFT calculations show that the interstitially doped fluorine impurities induce the formation of localized states in the band gap.
DFT计算结果表明了间隙掺杂的F在带隙中诱导形成定域态。
7.To evaluate the agreement between the results of two independent DFT packages, a quality factor is dened.
为评价两个独立DFT包的结果之间的一致性，一个质量因素？
8.The discrete Fourier transform (DFT)and discrete Hartley transform(DHT) can be considered as special cases of DYT.
常用的离散傅里叶变换（DFT）、离散哈特莱变换（DHT）均可视为DYT的特例。
9.In chapter 2, we briefly introduce the basic concept of DFT and review its recent progress.
第二章简要介绍了密度泛函理论的基本框架和近年来的理论发展。
10.The influence of the DFT leakage errors on the sound intensity measurement is analyzed and the simulation examples are presented.
分析DFT泄露误差对声强测量的影响，进行模拟计算。