1.
The Velocity Structure and Anisotropy of Uppermost Mantle in the South of Europe、East Asia and Middle Asia;
欧洲南部及东亚、中亚地区上地幔顶部Pn波速度结构及各向异性研究
2.
Research of Seismic Tomography in Capital Circle Area from Pn and PmP Wave Travel Time Inversions;
首都圈地区Pn和PmP波层析成像研究
3.
Single Carrier Frequency Domain Equalization for PN-based Systems;
基于PN帧结构的单载波频域均衡技术
4.
Fast Capture Scheme of PN Code based on FPGA
基于FPGA实现PN码快速捕获方案的设计
5.
A fast acquisition technique of long PN code with low signal-to-noise ratio
一种低信噪比下PN码的快速捕获技术
6.
The use of C-V technique in slowing distribution of P-N junction;
CV法测缓变PN结杂质浓度分布的研究
7.
Study on the Response of p-n Jumction for High Power Microwave Illumination;
PN二极管对高功率微波激励的响应研究
8.
Implementation of PN Matched Filter for Chinese DTTB Receiver
地面数字电视接收机PN匹配滤波器的FPGA实现
9.
Spread Spectrum PN Code Acquisition in System Based on Wavelet Transform
基于小波变换的扩频系统PN码捕获研究
10.
Improvement and Research of Method of PN Code Serial-parallel Fast Acquisition;
PN码串并结合快速捕获方法的改进与研究
11.
New Fast-acquisition Algorithm of PN code in Direct Sequence Spread-spectrum Systems
直序扩频系统一种新的PN码快速捕获算法
12.
Preparation and properties of TiN film by PN+PVD duplex treatment on the surface of high speed steel
高速钢表面PN+PVD复合处理工艺和性能研究
13.
acceleration cancelling hydropone
消加速度海洋检波器
14.
Normally the shear velocity is about half of the compressional velocity.
一般地说横波速度大约是纵波速度的一半。
15.
Discussion of Pseudo Rayleigh Wave?s Velocity and Amplitude in Full Waveform Well-logging,
声波全波列测井中类瑞利波速度及幅度的讨论
16.
For large wavelengths, the velocity is constant.
对于长波长的波，传播速度是常数。
17.
Visco-acoustic transmission waveform inversion for velocity structure in space-frequency domain
频率域粘弹性声波透射波形速度反演
18.
Electromagnetic waves travel at the same speed as light.
电磁波传送的速度和光速相同。