查询词典 spectrum

Frequency and spectrum characteristic of the optical low pass filter.

光学低通滤波器的频率特性和光谱特性。

These processes emit light in a spectrum characteristic of the gas being excited.

这些进程发光的光谱特性的气体正在兴奋。

Results Both of absorptions had the characteristic spectrum.

荧光方法的优点是对癌症诊断的灵敏度高[1 2 ] 。

This method when the signal is the time is steady also has the obvious difference and the noise spectrum characteristic is quite effective.

这种方法当信号是时间平稳且有明显区别与噪声的谱特性时是比较有效的。

A new method of estimating characteristic parameters for continuous spectrum of response signal of damped free vibration is presented in this paper.

针对自由衰减振动信号的连续谱，提出了一种估计特征参数的方法。

Also, internal wave's loads for differentcycles are given since the spectrum characteristic of internal wave.

由于内波谱的存在，文中给出了不同周期时的内波荷载数值结果。

For soil, the spectrum characteristic has strong relationship with the containing water of soil.

对于土壤，其在镜面方向的反射光谱特征与土壤含水量有明显的关系，因此利用角度信息来判断土壤含水量有很大的利用价值。

Based on the characteristic of GMAW arc spectrum, the method of the direct pool vision detection was proposed.

中文摘要：针对熔化极富氩气体保护焊接电弧光谱特点，设计了直接视觉检测法用于熔池图像的检测，获得了清晰的熔池图像。

Characteristic of visible spectrum was studied on niobium by contrast spectroscopic analysis.

对铌元素可见光谱进行了计算机模拟，研究了铌元素的可见光谱特征。

The characteristic analysis of stack velocity spectrum applied to seismic interpretation, especially to predicting oil and gas deposits is introduced in this paper.

本文主要介绍了速度谱特征分析在地震资料解释中的应用，尤其是在含油气储层预测方面的应用。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。