I want you to notice that this spectrum is interrupted by dark lines called spectral lines.
我想让你们注意到的是，这一光谱是被叫做光谱线的暗线所打断的。
Spectroscopy is basically the study of spectra and spectral lines of light, and specifically for us, the light from stars.
光谱学基本上是一种研究光谱和光谱线的学科，特别对我们来说，是研究恒星发出的光。
A British astronomer was analyzing a spectrograph of sunlight, and he noticed a particular pattern of spectral lines that didn't match anything in the library.
一位英国天文学家在分析一台太阳光摄谱仪时，注意到一种特殊的光谱线模式，它与图书馆里的任何一种都不匹配。
Each pattern stands for a distinct chemical element, and so different sets or patterns of spectral lines mean that the star has a different chemical composition.
每一种样式代表一种不同的化学元素，所以光谱线的不同集合或模式意味着这颗恒星有不同的化学成分。
This light is passed through a prism, which breaks it up into a spectrum, and a unique pattern, kind of like a chemical fingerprint of spectral lines for that element appears.
铁块会一直加热，直到到达某一燃点，便会辐射出光来；而当它的光线穿过一块棱柱时，棱柱就会分割光线，形成光谱。
A crucial issue in a passive sonar system is detection of the spectral lines.
在被动声纳系统中，线谱检测是一个至关重要的问题。
A review of techniques for detection of spectral lines is given in this paper.
本文对线谱检测技术进行了综述。
Kind of like a chemical finger print of spectral lines for that element appears.
一个化学元素的样式就被光谱线显现出来了。
I want to know is this spectrum is interrupted by dark lines called spectral lines.
我现在希望你们看到那隔断光谱的黑线就是光谱线。
Detections of the spectral lines is an important issue in the passive sonar system.
在被动声纳系统中，线谱检测是一个至关重要的问题。
The spectral lines of sulfur are found firstly. The reason of exist of sulfur is explained.
此外还发现了硫的谱线，并对这一谱线的存在提出了解释。
The important astrophysical information is hidden in spectral lines of astronomical spectra.
天体光谱中的谱线包含重要的天体物理信息。
The identification of spectral lines is an important topic of DSP (Digital Signal Processing).
谱线辨识是数字信号处理的一个重要课题。
Finally, adaptive local thresholding associated with the universal thresholding is used to extract spectral lines.
最后，联合采用整体阈值处理和自适应的局部阈值处理提取谱线。
A designing scheme of a new comb waveform TP constructed by several single - frequency spectral lines is presented.
给出了一种由多个单频线谱组成的梳状谱信号TP信号的设计方案。
The phase error signal due to the phase truncation is analyzed, and the regularity of its spectral lines is obtained.
对相位舍位误差信号作了分析，得到了其频谱分布的规律。
Experimental results indicate the evident effect of the pressure of light source on the appearance of NIII spectral lines.
使用两米法线入射式真空摄谱仪和电容放电光源。实验表明，光源气压对NIII谱线的出现有显著的影响。
The Gauss function is used to fit the spectral lines, marking the central wavelengths, as a basis for automatic identification.
用高斯函数拟会出谱线的形状，标出线心的波长值，作为自动证认的基础。
This paper deals with extraction of spectral lines of underwater targets in background noise using a space-time integral method.
利用目标线谱与自噪声线谱在时间域和空间域上的差异，采用时空联合手段研究舰船噪声中目标线谱的提取方法。
Tomget sharper spectral lines, they started by successfully developing nonlinear methods such as saturation or two-photon spectroscopy.
为了获得更加清晰的光谱线，他们成功发现了非线性方法像磁性饱和和双光子光谱学。
X-ray spectral lines emitted by high temperature plasma can be taken by means of crystal spectrograph in laser-plasma experiments.
在激光等离子体实验中，用晶体谱仪可获得高温等离子体所发射的X光谱。
This method, with superior measurement precision, is applicable to the measurement of time domain variable with discrete spectral lines.
这一方法的测量精度远优于其它方法，并可适用于一切具有分立谱线的时域变量的测量。
When there are unknown spectral lines missing from the measurement model, the measurement noise is not white and model error is produced.
当一些未知谱线没有被测量模型考虑时，测量噪音不再是白色的，模型误差也就随之产生。
And alpha is something that we can measure at distant places in the universe and thereby back in time by looking at these atomic spectral lines.
我们可以在宇宙里遥远的地方测量阿尔法常数，从而通过研究这些原子光谱线回到过去。
And alpha is something that we can measure at distant places in the universe and thereby back in time by looking at these atomic spectral lines.
我们可以在宇宙里遥远的地方测量阿尔法常数，从而通过研究这些原子光谱线回到过去。
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