沉积物
发表于 2025-3-23 13:33:55
Detectability of Finite-State Automataery accurate. Photographic recording of spectra is a very common and useful technique since a spectral region may be photographed that includes many spectral lines of many elements. The photoplate also becomes a permanent record of the spectra.
妨碍
发表于 2025-3-23 15:11:05
Kuize Zhang,Lijun Zhang,Lihua Xie an element. About 70 elements are easily identified by spectral methods. Those that are more difficult to identify include the gases and a few nonmetals, primarily because sensitive lines lie in the short ultraviolet portion of the spectrum that is difficult to observe.
AGONY
发表于 2025-3-23 18:17:46
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VEIL
发表于 2025-3-23 22:38:21
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卜闻
发表于 2025-3-24 02:43:33
Discrete-time Signal Processing line intensities. His instrumentation requirements therefore were the same as for conventional arc-spark emission spectroscopy as described in Chapter 8, except for the replacement of the arc-spark excitation source with the flame.
刺激
发表于 2025-3-24 10:02:47
Flame Emission Spectroscopy, line intensities. His instrumentation requirements therefore were the same as for conventional arc-spark emission spectroscopy as described in Chapter 8, except for the replacement of the arc-spark excitation source with the flame.
Redundant
发表于 2025-3-24 11:14:20
Book 1975 involved in analytical atomic spectro scopy. To meet this objective, the book includes an elementary treatment of the origin of atomic spectra, the instrumentation and accessory equipment used in atomic spectroscopy, and the principles involved in arc-spark emission, flame emission, atomic absorpt
GEN
发表于 2025-3-24 17:26:47
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Heart-Attack
发表于 2025-3-24 20:27:01
Historical Introduction, the intrumentation required to produce, record, and measure the wavelengths of spectral lines and their intensities. These requirements therefore make necessary a knowledge of (1) the basic laws of optics, including characteristics of lenses and mirrors, (2) spectral dispersion elements, such as pr
勉励
发表于 2025-3-24 23:12:15
The Origin of Atomic Spectra,ic understanding of the origin and the properties of spectra. The development of analytical methods using spectra as a basis for acquiring analytical data requires some understanding of such things as spectral line intensities, linewidths, temperature and pressure effects on spectral intensities, an