高频率

When the linear array CCD is installed reasonably in autocollimator and peculiar pattern reticule is used autocollimator can measure two-dimensional small angle also with characteristics of great reducing cost simple driving and processing circuit high collecting speed and high frequency response measuring angle.

当线阵CCD安装在自相当奇特的格局和镜头可以用来衡量自二维小角度也有很大的特点，降低成本，加工简单驱动电路速度高、高频率采集反应测量角度。

Circular polarization is one of microwave equipment with broad application.its the mostly function is switch linearly - polarized wave into circular polarized wave.grating- circular polarization is one of circular polarization,its advantage is simple structure and ease of processing.it is prone to expand high power and high efficiency range.because circular polarization have expand application..

光栅圆极化器是其中的一种，它具有结构简单，加工实现容易，易于向高频率、高功率应用扩展等优点。

The BEST CORONA is based on the principle of high-voltage discharge in the high-frequency area.

该BEST CORONA 的原则基础上的高电压放电中的高频率地区。

According to pulse oddment counting principle,a pulse signal counting circuit for differential ring lasers is designed based on XC3S400AN,a kind of FPGA chip with high performance.

根据脉冲零头计数原理，应用高性能的FPGA芯片XC3S400AN，基于VHDL结构描述语言，对高精度高频率时钟信号进行时序控制及同步处理，设计出一种四频差动激光陀螺脉冲信号计数电路，并进行了实验测试。

According to pulse oddment counting principle, a pulse signal counting circuit for differential ring lasers is designed based on XC3S400AN, a kind of FPGA chip with high performance. The structure of the circuit is described in VHDL language and realized through sequence control and synchronization process of high accuracy/frequency clock signal.

根据脉冲零头计数原理，应用高性能的FPGA芯片XC3S400AN，基于VHDL结构描述语言，对高精度高频率时钟信号进行时序控制及同步处理，设计出一种四频差动激光陀螺脉冲信号计数电路，并进行了实验测试。

Production of high precision and high frequency, high-quality product advantage.

具有生产高精度、高频率、高品质产品的优势。

As they form the level of ionisation gradually builds up, affecting first the lower frequencies, and later higher frequencies as the level of ionisation increases.

当它们的电离度开始逐渐增强时，首先影响较低的频率，而更高频率通常显示出电离度的增加。

A design and implementation method of the high speed modulation system, which adopted the new techniques of the FPGA and DAC based communication system,is presented in this paper. The effect of the key techniques of this system, such as the high speed digital signal processing for modulation, high speed based-band signal conversion, wide-band modulation, carrier suppression, high frequency and high precision system clock generation, is analyzed, and the solutions and performance analysis is also given. Finally, a high speed modulation system for space applications is implemented, can be used for high speed data transmission with QPSK, 8PSK, QAM or other kinds of digital modulation.

本论文依据正交调制原理，采用基于FPGA和DAC的设计技术，提出了一种高速、灵活的调制系统的设计方法，重点分析了系统组成的调制编码映射、基带脉冲信号转换、信号滤波、调制、系统时钟产生等关键技术环节的影响，解决了高速调制信号处理、高速数据转换、宽带调制、载波抑制、高频率高精度系统时钟的产生等关键技术问题，完成了一种适用于空间应用的高传输速率、多进制数字调制方式和调制体制灵活的数据传输调制系统的设计与实现，可在硬件设计不变的情况下，实现QPSK、8PSK和16QAM等多种调制方式的高速数据传输，QPSK调制速率达到500Mbps。

When traveling through a medium higher frequency waves travel ever so slightly faster than lower frequency ones.

在介质中传播的时候，高频率的电磁波会比低频率的稍微快一点，哪怕只是一点点。

Best cost-benefit ratio in our all series loudspeakers and perfect performance: Pro protect circuits are built into the crossover network to guard the high-frequency and low-frequency transducer from damage.

最佳的成本效益比，在我们的所有系列扬声器和完美的表现：临保护电路都内置于交叉网络，以防范高频率和低频率变送器受到损坏。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！