甚至在19世纪60年代,就已经有了一个相当广泛的元素谱线模式库。
There was a pretty extensive library of spectral line patterns of elements even by the 1860s.
比如,可能会让我们决定有哪些不同的元素可以产生一个有五条不同的谱线的光谱?
We might be asked, for example, to determine what different elements could produce a spectrum that gave 5 different lines.
你们看到发射谱线,不是吸收谱线。
某特定的谱线就代表一个确定光的波长。
A particular spectrum line corresponds to a certain definite light wavelength.
它和吸收谱线混杂,每一条都能辨认出来。
It's plastered with absorption lines, and each of them can be identified.
因此,我们在光谱中看不到,分立的谱线。
So that's why we're not seeing separate lines in this spectrum.
谱线辨识是数字信号处理的一个重要课题。
The identification of spectral lines is an important topic of DSP (Digital Signal Processing).
在非饱和增长期间,谱线轮廓的宽度将减小。
During unsaturated growth, the width of the spectral profile will decrease.
天体光谱中的谱线包含重要的天体物理信息。
The important astrophysical information is hidden in spectral lines of astronomical spectra.
优选出最佳仪器工作条件和被测元素分析谱线。
The analytical conditions were optimized and the best spectrum lines were selected.
谱线展宽因子是半导体激光器的重要参数之一。
Linewidth enhancement factor is one of the most important factors of semiconductor lasers.
本文研究发现光学支声子模对谱线热增宽有一定影响。
This paper, we discovered that temperature linewidth is influenced by the optical branch.
文章针对正常星系光谱给出了一种新的谱线自动提取方法。
The present paper presents a novel technique of spectral line auto-extraction for normal galaxy spectra.
你们可以看到,太阳的光谱,以及我向你们提过的,吸收谱线。
And here you see the spectrum of the sun with all these absorption lines that I mentioned to you.
谱线的差异越大,说明伪装效果越差,反之,说明伪装效果好。
The difference between two spectrum is more visible, the camouflage effect is worse. Contrarily, the effect is better.
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。
Finally, adaptive local thresholding associated with the universal thresholding is used to extract spectral lines.
比如说他们预计会看到某个特定的频率,或者在这里看到一个谱线。
So, let's say they were expecting to see one certain frequency or one line in the spectrum at this point here.
在光谱管中原子间的碰撞是导致原子发射谱线加宽的重要原因之一。
The collisions between atoms in a spectral tube can be one of important Sources of emission-line broadening.
矫正后的线色散率公式可直接用于汇编计算机自动寻找谱线位置的程序。
The corrected formula can directly be used to work out the computer program of automatic seeking spectra's places.
与现有的基于谱线匹配的方法相比,该方法对谱线提取效果的依赖程度较低。
Compared with other methods of the same kind, this method has a lower dependence on the quality of spectral line extraction.
文中报道了三原子共振荧光由七条谱线组成,每条谱线又有自己的精细结构。
It is found that the resonance fluorescence in a three-atom system consists of seven lines and each line has its own fine construction.
相对于已有的基于谱线匹配的方法,此方法的性能受谱线提取效果的影响较小。
Compared with the existing methods based on spectral line matching, the proposed method has a lower dependence on the quality of spectral line extraction.
结果秦艽与红秦艽的紫外谱线组图像、最大吸收峰数目及峰位值具有明显差异。
RESULTS the UV spectra of the herbal drugs showed different maximum absorption peaks both in number and intensity.
太阳光谱中的几千条谱线,绝大多数能确切地与地球上的已知元素谱线相吻合。
Of the thousands of line in the sun's spectrum, most can be definitely identified with those of elements known on the earth.
以矩形谱线的光源为例,计算了时间相干度,简要介绍了傅里叶变换光谱学原理。
The author takes light source of the rectangle optical spectrum as an example to calculate time relevant degree and briefly describes Fourier's spectroscopy principle.
在拉伸和松弛过程中,宽谱线和窄谱线的相对强度和旋转相关时间也随着发生变化。
The wide and the narrow spectra vary sharply in their intensities and rotational correlation times with the stretching and relaxation processes.
用数值计算分别考察了氧杂质进入通量和约束时间对谱线峰值强度和起始时间的影响。
The influences of oxygen impurity influx rate and confinement time on intensity and switch-on time of line emissions are surveyed numerically.
发现部分元素的空心阴极灯发射线与其他元素的共振线或非共振线存在谱线重叠现象。
The spectral overlap was discovered among emission lines of some elements and resonance lines or non-resonance lines of other elements.
发现部分元素的空心阴极灯发射线与其他元素的共振线或非共振线存在谱线重叠现象。
The spectral overlap was discovered among emission lines of some elements and resonance lines or non-resonance lines of other elements.
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