查询词典 waveform audio

Based on SPWM basic principle and Fourier series theory, the mathematical model of output waveform of SPWM voltage source inverter is built.

根据SPWM的基本原理与付立叶级数理论，建立了SPWM电压型逆变器输出波形的数学模型。

Because of this circuit has free-wheeling loop, even to the perceptual load, the output voltage waveform nor distortion.

由于该电路具有续流回路，即使对感性负载，输出电压波形也不会畸变。

This paper introduced the electric current sensor principle of work and voltage pick-up each kind of parameter, elaborated hands over - hands over the frequency changer the principle of work, has made the simple description to its output current voltage waveform, in addition, this article logarithm has also given quite detailed showing according to the gathering technology.

本次论文介绍了电流传感器的工作原理及电压传感器的各种参数，阐述了交-交变频器的工作原理，对其输出电流电压波形做了简单的描绘，此外，本文对数据采集技术也作了比较详细的说明。

These are the non- fundamental frequency components of a distorted 50 Hz waveform.

在畸变的50Hz波形中存在非基频的分量。

However, it is difficult to analysis the waveform within a fundamental period directly.

若要从基本周期的波形来直接分析音色，是一件很困难的事。

We now have to make some assumptions about the characteristic of the jitter to proceed. One assumption that seems to work is that the jitter amplitude has a Gaussiandistribution. For a jitter waveform that has a Gaussian distribution, there is a point on the Gaussian jitter distribution curve that reflects the RMS value of jitter for Gaussian distribution waveforms, just as with the wave.

一个可行的假定是Jitter幅度具有高斯发布，对于有高斯发布的Jitter波形，高斯Jitter分布曲线上有一点反映了Jitter在高斯分布波形下的RMS值，这点称为"1-sigma值，标准分布"或者"RMS Jitter"值。

High regulating voltage accuracy, good dynamic performance, less voltage waveform distortion make this series generating sets with high efficiency, compact structure, convenient maintenance, reliable and long life operation and good economic performance.

该系列机组具有调压精度高，动态性能好，电压波形畸变小，效率高，结构紧凑，维修方便，工作可靠，使用寿命长，经济性能好等特点。

Featured in high voltage regulating accuracy, good dynamic performance and less voltage waveform distortion, combined with high efficiency and impact structure, series 2000 diesel generating sets can work reliably and operate with long life and with economic performance.

该系列机组具有调压精度高，动态性能好，电压波形畸变小，效率高，结构紧凑，维修方便，工作可靠，使用寿命长，经济性能好等特点。

B Through theoretical and experimental studies, the paper investigats the relationships between hammer geometer and stress waveform generated by the hammer. After the mechanical meanings of linear model used by others are demonstrated, a simple expression of rigidity of an equivalent spring for direct impact between a hammer and a rod is obtained. Based on the above work, a mathematical model and numerical method for the impact of the hammer with progressively changing cross-section on the rod are presented.

2应用理论分析和实验研究相结合的方法，探讨了冲击应力波波形和冲锤形状尺寸之间的关系；阐明了冲锤与杆撞击局部变形的线性模型的物理意义，继而分析讨论了冲锤端头曲率半径与撞击弹簧刚度的关系；在此基础上，提出了连续变截面冲锤与杆撞击的数学模型和计算方法。

This paper introduces structure of waveform steel web prestress concrete box girder and construction method for several bridges.

介绍了波形钢腹板预应力混凝土箱梁的结构和几座桥梁的施工方法。

Pradeep Indulkar, a senior official at the Maharashtra state Home Ministry say 101 human were killed and 287 injured.

马哈拉施特拉邦内政部高级官员Pradeep Indulkar称，有101人在冲突中丧生，287人受伤。

Mark Frei, a senior vice president of West, says 80% of West's homeagents have some college education, compared with 30% of those whowork in office-based call centers.

Frei说，该公司80%在家办公的人员都拥有本科学位，而在公司电话中心工作的人中只有30%拥有本科学位。