spectrum 六级考研雅思GREGMAT

Then the effect is to steepen the flanks of the pulse spectrum.

因此在果上是加大了脉冲翼部的陡度。

The absolute summability of autocorrelation sequence imposes only the continuity constraint on the power spectrum.

另外，绝对可加性自相关数列之假设只是意指在频中必须连续。

This is a kind of atomic spectrum.

这是一种原子光。

Quartz is studied using an electrical conductible degree of ore-bearing fluids and infrared spectrum.

电导度是溶液导电能力的相对尺度,电导度的大小能直接反映出成矿溶液浓度的高低。

Howard Pattee, an early cybernetician, defined hierarchical structure as a spectrum of connectance.

早期的控制论专家德·派蒂将层次结构定义为一个连接性频。

To make use of the model test method to study automobile rideability, the random excitation signal spectrum which is similar to that of typic-al roughness of road is needed.

利用模型试验方法研究汽车平顺性,需要在磁带上生成与路面不平度统计特性一致的随机激振信号。

Moreover, the results of IR spectrum and apolar component of surface free energy showed that the alkyl chains of OTS tilted on the surface of PTW after the modification.

IR分析和色散分量测定表明，改性后OTS的烷基链倾斜在PTW表面。

The article expounds the application sphere of some elements in analysing food by using the method of atomical spectrum assimilation, and expounds the making of samples by offering examples.

本文对应用原子吸收光法分析食品中某些金属元素的应用范围、样品的制备方法进行了较详细的阐述,并列举了一些金属元素测定方法的实例。

The article expounds the sample decomposition and the method of the sample preparation by applying the method of atomical assimilation spectrum, and lists some specific analytical of metallurgy.

本文对应用原子吸收光法分析冶金样品过程中的试样分解和分析样品的制备方法进行了较详细的阐述,并列举了几种基体合金的具体分析方法。

Abstract： Using lead benzoxy as curing agent,cured epoxy resin was analyzed by means of IR spectrum and DSC curves.Lead benzoxy was considered to be catalytic curing agent.

摘 要： 采用苯甲酸铅做固化剂，通过对环氧树脂固化物的红外光及DSC曲线分析，认为苯甲酸铅是一种催化型固化剂。

The feasibility of roasting reduction method to dezinc the Zn bearing BF dust was proved by energy spectrum analysis and differential thermal(DT) and thermo gravimetric(TG) analysis firstly.

通过能、差热及热重分析等验证了用还原焙烧的方法脱除高炉含锌粉尘中锌的可行性。

The metol content and the hydroquinol content in developer solution were analyzed by potential spectrum method.During this analysis, two components were continuously titrated at the same time.

采用一种新的化学分析方法电位波法分析显影液中的米吐尔和对苯二酚的含量,在研究过程中实现了这两种成分的连续滴定分析。

Texture unit and texture spectrum can get the difference of the microtexture and the macrotexture of this two regions effectively so as to detect the target.

而纹理单元及其函数纹理频则分别能有地捕获这两个区域在微纹理及宏纹理上的差异，从而检测出弱目标。

Using lead benzoxy as curing agent,cured epoxy resin was analyzed by means of IR spectrum and DSC curves.Lead benzoxy was considered to be catalytic curing agent.

采用苯甲酸铅做固化剂，通过对环氧树脂固化物的红外光及DSC曲线分析，认为苯甲酸铅是一种催化型固化剂。

The DL spectrum of Lagerstroemia speciosa lamin a is more complex than the fluorescence spectrum of exsomatize chlorophyll and t he former contains more physiological message.

叶片的延迟发光光比离体叶绿素荧光光复杂，延迟发光光包含有更多的生理学信息。

RESULTS The chlortetracycline's epimer, tetracycline and its epimer, as impurities in chlortetracycline have been determined by the liquid chromatogram and its first order mass spectrum.

结果得到金霉素样品液相色图以及液相色峰对应的一级质图。对图进行分析归纳,推测金霉素样品中含有四环素、差向异构四环素和差向异构金霉素杂质组分。

In a spread spectrum communication system,pseudocode acquisition and tracking is the base of communication and the acquisition time has direct effect on system performance.

在扩频通信系统中,伪码捕获跟踪是通信的基础,捕获时间的长短直接影响系统性能。

This paper presents a new frequency domain deghosting method on the basis of analyzing both the ghost formation mechanism and its filter spectrum characteristics.

在分析了虚反射的形成机制及其滤波器频特性的基础上,提出了一种在频率域剔除地震鬼波的新方法。

The formation mechanism of orange valvule-like pinhole in rolled aluminium foil was investigated by using optical microscopy,scanning electron microscopy,and energy dispersion X-ray spectrum.

利用光学显微镜、扫描电镜、能分析等试验手段对铝箔中"桔瓣"形针孔形成的原因进行了分析。

In the research of primary spectrum pyrometry, this paper discussed the definition problem of radiation temperature measurement area based on the measurement coordinates.

文章讨论了色测温系统研究中，基于测温坐标系的辐射测温区域的界定问题。