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1·The spectral characteristic of the materials can indicate its component, structure and morphology.

材料的光谱特性能够直接反映材料的组成、结构和形态特征。

2·Spectral characteristic is one of the basic characteristics of ground objects, and is the basis of qualitative and quantitative remote sensing.

波谱特性是地物目标的基本特性之一，是定性、定量遥感的基础。

3·Spectral characteristic is one of the basic characteristics of surface objects, and is the basis of qualitative and quantitative remote sensing.

波谱特性是地物目标的基本特性之一，是定性、定量遥感的基础。

4·This paper analyzes the spectral characteristic of the synthesized waveform by use of the Fourier Series, and discusses the spurious spectrum of the phase truncation errors.

本文用傅里叶级数的方法分析了合成波形的频谱特性，并对由于相位截断引起的杂散谱作了讨论。

5·Based on analysis of spectral characteristic of helicopter acoustic signal, a method of extracting harmonic frequencies from the helicopter acoustic signal via ESPRIT is proposed.

在对直升机声信号特征进行分析之后，提出了一种基于谐波恢复的ESPRIT方法来提取直升机声信号谐波频率作为特征用以识别直升机声目标。

6·The spatial reflected characteristic and spectral characteristic from optical material surfaces were effectively described by the BRDF (Bi-directional Reflectance Distribution Function).

双向反射分布函数(BRDF)有效地描述了材料表面的空间反射特性和光谱特性。

7·According to the spectral characteristic of the noise source, the tube-type muffler, metal-enclosure muffler, structural-type muffler can be equipped before and after the noise reduction devices.

根据声源的频谱特性在其前后配置合理的管道式消声器、金属外壳式消声器、结构式消声器作为消声降噪的措施。

8·In this thesis, Spectral method is used to analyse the scattering characteristic of Frequency Selective Surfaces (FSS).

本文用谱域方法研究了频率选择表面(FSS)的散射特性。

9·A new, indirect method to estimate the error characteristic of the spectral distribution of color video camera is proposed in this paper.

本文提出一种利用间接法来推定摄像机光谱特性的误差特性新方法。

10·The spectral photometric characteristic of the object is the main factor affecting its color appearance.

物体的光谱光度特性是其产生不同颜色外貌的主要因素。