查询词典 frequency function

Using Density Function Theory we receive the ground states of GaN and GaN2 are X 、X2B2 respectively.Murrell-Sorbie analytical potential energy functions of GaN have been derived by using ab initio data and the least-square fitting method, and harmonic frequency, force constant and spectroscopic data also have been calculated.

基于量子化学计算得出GaN和GaN2 基电子态及其离解极限之后，利用计算数据和最小二乘法得到了GaN 的M-S解析势能函数，并计算出各态的谐振频率、力常数和光谱数据。

The dispersivity of wave propagation implies that phase velocity of a single harmonic wave is a function of the angle frequency.

本论文基于上述耦合模型，对单轴应变一维情况讨论了非线性饱和-非饱和多孔介质中波传播过程的失稳现象和逸散性。

A key point in Short Time Fourier Transform is the choice of window function. Although rectangle window is regarded as the first choice because it's featured by integral harmonic to filter signals and by DC component, decaying DC component and frequency shift of signals cause great error to rectangle window STFT. In addition, transient signals contain rich information of faults, but the fixed time window of STFT fail to collect these information.

STFT 算法关键问题之一是窗函数的选择，矩形窗以滤除信号整数次谐波和直流分量的特点自然称为首选窗，但衰减直流分量和信号的频率偏移对矩形窗 STFT 造成了很大误差；其次，暂态信号中含有丰富的故障信息，傅立叶变换固定的频窗忽略了这些特征信息。

It not only have tradition instant chat tool of havings function, return can support 5 people carry on speech dialogue perhaps video frequency meeting in the meantime and provide an off-line document to deliver.

它不仅具有传统即时聊天工具的所有功能，还能够支持5人同时进行语音对话或者视频会议，提供离线文件传输。

This product has other healthy function, such as sterilization enzyme and minus hydronium which avoid fitment pollution, providing fresh air anytime. Haire fifth generation central air condition adopts the technology of frequency conversion and can save over 30% energy more than average air condition.

该产品拥有的杀菌酶、负离子等健康功能，更让人们远离"装修污染"，随时享受到健康清新的空气；海尔第五代家庭中央空调采用变频技术，比普通空调节能30％以上。

Instantaneous frequency is function of time that gives sharp identification of imbedded structures in signal.

由于瞬时频率是时间的函数，因此可以获得信号任意时刻的频率分布，利用瞬时频率的局部化特征可以有效地揭示信号的内在结构。

In order to measure the passive network's conduction automatically, a network conduction instrumentation based on FPGA technology was designed and implemented according to the design principle of Virtual Instrument. System adopted FPGA technology building a digital flat-top to imitatively produce the high quality sine signal. Under the control of C8051MCU, measurement, calculation and display of the port network's conduction were automatic implementation. Furthermore, the system has the function of frequency step measurement.

摘 要：为了实现对无源端口网络的导纳进行自动测量，根据虚拟仪器设计思想，设计实现了基于FPGA的网络导纳测量仪，系统以FPGA作为数字平台模拟产生优质的正弦信号，在单片机C8051的控制和处理下，自动实现端口网络导纳值的测量、计算、显示，同时具有频率步进测量功能。

Connectivity between matrix and keyboard, in view of the fact double to RS485, and the data convert frequency is higher, a lot of opticses port machine can't adapt, will take place:Complete impassability;Hour the good hour is bad;Over 3 kilometers for the phenomemon of the impassability, at the equipment chooses the type need the special note, the CE matrix and opticses carry the enough good fit usage of function.

矩阵和键盘之间的连接，由于是双向RS485，而且数据转换频率较高，很多光端机不能适应，会发生：完全不通；时好时坏；超过3公里就不通的现象，在设备选型时需特别注意，CE 矩阵和光端机能够很好的配合使用。

Connectivity between matrix and keyboard, in view ofthe fact double to RS485, and the data convert frequency is higher, a lot of opticses port machine can't adapt, will take place:Complete impassability;Hour the good hour is bad;Over 3 kilometers for the phenomemon of the impassability, at the equipment chooses the type need the special note, the CE matrixand opticses carry the enough good fit usage of function.

矩阵和键盘之间的连接，由于是双向RS485，而且数据转换频率较高，很多光端机不能适应，会发生：完全不通；时好时坏；超过3公里就不通的现象，在设备选型时需特别注意，CE 矩阵和光端机能够很好的配合使用。

For the condensed dynamic stiffness matrix in finite models which have finite number of freedom and any dynamic stifmess matrix of infinite system, the element of them is a transcendental function of eigenfrequency. And therefore transcendental eigenvalue problem is needed to be solved in order to get the natural frequency and modes of vibration.

对于有限自由度系统的缩聚动刚度矩阵和无限自由度系统的任何动刚度矩阵，其元素是频率的超越函数，因此求解结构固有频率及其振型归结为求解超越特征值问题。

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！