查询词典 dab

The sole member of the "DAB"(or "adjudicator") and, where this is the case, all references to the "Other Members" do not apply

i"争端裁决委员会"的唯一成员，并且在这种情况下，所有提及的"其他成员"之处都不再适用，或者

Firstly it describes the development ,basic principle and application and propagation characteristic of mobile channel , then investigates the system structure of DAB transmitter and receiver separately and the key technology of realization of the digital audio broadcast system.And then discusses the system component of FFT －the demodulation module of OFDM .The 409- points FFT module employs a radix-4 decimation-in-frequency algorithm, includes arithmetic element , read and write address element ,twiddle factor element and control element , is realized by FPGA. In the end , the result is verified in the matlab .

首先概述了OFDM的发展、基本原理和应用以及移动信道的传播特性，接着分别研究了数字音频广播接收机和发射机的系统结构，以及数字音频广播系统实现的关键技术，然后详细论述了OFDM解调模块FFT的系统结构，主要研究了4096点FFT采用基－4按频率抽取实现的算法，整个FFT模块包括了运算单元、读写地址单元、旋转因子单元以及控制单元，并且在FPGA中进行了硬件实现，并在matlab环境下对结果进行了验证。

The project will develop a bandpass sigma-delta analog-to-digital converter for digital audio broadcasting system in three years. In the first year, we had finished the system simulation for IF receiver using conventional high speed ADC and bandpass sigma-delta ADC, respectively. We also had done the analysis and design of high-order bandpass sigma-delta modulator structure. In this year, we have developed a coefficient synthesis method for high order bandpass sigma-delta modulator using high order filter transfer functions (inverse Chebyshev bandreject filter function).

本计划将在三年内发展一个能应用在数位音讯广播系统的带通sigma-delta类比/数位转换器(analog-to-digital converter，ADC)，在第一年度中我们分别以传统高速类比/数位转换器及带通SD类比/数位转换器的接收系统为例，并结合编码正交多工器(Coded Orthogonal Frequency Division Multiplex，COFDM)的技术，建立一套DAB系统模拟的方法，同时并研究有关高阶带通SD类比/数位调变器的架构及电路，并已成功开发出一个由高阶滤波器合成的高阶带通调变器。

I'm going to dab you.

我会给你轻轻擦的。

She is a dab hand at golf.

她是打高尔夫球的高手。

He is a dab hand at basketball .

他是个篮球健将。

And if I get a little hot, I can just dab myself with it.

如果我热了就可以拿它来吸汗

She is a dab hand at chopsticks.

她是个使筷子的能手。

The static optical recording characteristics were studied by the home-made static characterizer, the high contrast pattern can be produced by 780 nm laser pulses and can be erased by heating.

利用自制的光学信息写入系统研究了m-NBMN/DAB有机薄膜的静态存储特性，发现在780 nm激光脉冲的作用下m-NBMN/DAB有机薄膜具有光学双稳态特性，并且在大气中加热薄膜可实现信息擦除。

The research results indicated that the pretreatment of corn stalk by steam blasting procedure or warm oxygen method could successfully separate lignose and fibre, and enzyme hydrolysis could realize 85 % cellulose conversion rate, then yeast used for fermentation to produce alcohol.

将测定谷物色氨酸的&酶水解三氯化铁醋酸比色法&用于山羊奶、牛奶色氨酸测定，回收率可达96.4％以上。试验结果表明，该法精密度与DAB比色法无显著性差异，但比DAB比色法更快，更简便可靠

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。