Through vibration frequency spectrum analysisof no-tillage seeder in field, its vibration characteristics were obtained.

A filter whose transfer function is matched with the frequency spectrum function of input signal.

其传递函数与输入信号的频谱函数相匹配的一种滤波器.

The Frequency Spectrum Dsitribution and Time Propagation of Voltage and Current pulse on a Transmission Line.

传输线上脉波电压及电流之频谱分布及时域传播.

The cost of carrying more energy is that the frequency spectrum is widened.

但该编码在提高信号能量的同时,展宽了频谱.

A bit of English Notes wavelet transform, used in calculating the frequency spectrum, suitable for beginners.

带点中文注释的小波变换, 计算频率谱用的, 适合初学者.

Compared to the frequency spectrum of those samples, the piezoelectric resonance modes were recognized.

配合频谱识别出了对应的压电谐振的模式.

Among the many Spread Spectrum technologies, Direct Sequence Spread Spectrum ( DSSS ) is a most popular technique.

直接序列扩频通信 ( DSSS ) 系统是应用最广泛的一种扩频通信方式.

Thus , the longer spread spectrum sequences can be used and the robustness accordingly enhanced.

Gold码的应用使得算法可以采用较长的扩频序列,提高了鲁棒性.

It uses spread spectrum technology.

它使用扩频技术.

In this paper, first, the basic theory and characteristics of spread spectrum communications was introduced.

本文首先介绍了扩频通信的基本理论及其特点,研究了扩频通信系统的基本模型.

Analysis shows that this MSK spread spectrum communication system in the underwater acoustic channel is feasible.

分析表明,采用相位比较差分解调和滑动相关捕获的MSK扩频系统 在水下声信道中的应用是可行的.

Pseudo random sequence has broad applications in stream cipher , channel coding, and spread spectrum communication.

伪随机序列在流密码 、 信道编码 、 频通信等领域有着广泛的应用.

Spread Spectrum Watermark complete source code can be used directly.

扩频水印完整的源代码可以直接使用.

Shania Twain. She came out, and she was just so strong and so independent and wrote all her own songs.

她出现在我眼前，如此强大而独立，并且所有的歌都是她自己写的。

Shania Twain - When You Kiss Me

当你亲吻我时

Shania Twain And if I change my mind A million times

如果我为一件事改一千次主意

Today Is Your Day-Shania Twain You got what it takes you can win. . .

今天是你的日常仙妮亚唐恩你有什么需要你可以赢得…

The man was picking up the ground very hard.

那个人正在使劲地挖地.

When their child died, they took it very hard.

他们的孩子死时他们痛苦不堪.

Polishing surface with elastic laing tools have higher efficiency and quality than with ball end tools.

结果表明:用弹性浮动工具机械电解抛光平缓曲面具有加工效率高,质量好的优点.

The physical method include distil-laing, adsorption, etc.

物理方法包括蒸馏法 、 吸附法等.