| 单词 | absorption band |
| 例句 | For many applications, a narrow absorption band may be desirable. Controlled-reflectance surfaces with film-coupled colloidal nanoantennas 2012-12-11T21:22:39.403Z The spectrum of chlorophyll, the green colouring matter of plants, shows two very strong absorption bands in the red. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z And the study of the absorption bands in the spectrum of the living leaf becomes more intelligible in the light of these conclusions. Disease in Plants 2012-03-01T03:00:22Z The bodies which exhibit the first kind are those which possess strong absorption bands, of which only one remains appreciable after great dilution. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z Sellmeier’s theory did not take account of absorption, and cannot be applied to calculate the dispersion within a broad absorption band. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 "Dinard" to "Dodsworth" Certain absorption bands at the blue end of the spectrum are supposed to be due to rare elements such as samarium. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" Later researches, especially those of S. P. Langley with the spectro-bolometer on the infra-red spectrum of sunlight, demonstrated the existence of marked absorption bands, some of which are due to water vapour. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z The absorption bands are referred to certain definite parts of the spectrum, such as the Fraunhofer lines, or they may be given in wave-lengths. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" The absorption bands also are different from those of substances of the first kind, for they readily disappear on dilution. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z The sign of summation Σ is used in cases where there are several absorption bands, and consequently several similar terms on the right-hand side, each with a different value of λm. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 "Dinard" to "Dodsworth" Examination of the absorption spectra of coloured compounds shows that certain groupings displace the absorption bands in one direction, and other groupings in the other. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" The more refrangible end of the spectrum is fainter than in the previous Class, and absorption bands are sometimes found towards the red end. The Story of the Heavens If ammonia be added to the original solution, alkaline hæmatin is produced, or if acetic acid be chosen, acid hæmatin is produced, and each gives its appropriate absorption bands. Aids to Forensic Medicine and Toxicology In such a layer, fluorine does not present any absorption bands. Scientific American Supplement, No. 832, December 12, 1891 Only very thin layers are sufficiently transparent to show the dispersion near or within an absorption band, and a large refracting angle is not required, the dispersion usually being very considerable. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 "Dinard" to "Dodsworth" The bluish shades of eosine colors, on the contrary, have an absorption band further in the yellow. Scientific American Supplement, No. 530, February 27, 1886 If we examine this anomaly, we perceive that the crystals manifesting these effects are complex bodies, formed of various matters, one, or sometimes several, of which absorb light and give each different absorption bands. Scientific American Supplement, No. 586, March 26, 1887 If we now add a little ammonium sulphide to this solution, we get the spectrum of reduced hæmoglobin, which is a single broad absorption band situated in the interval between the preceding oxyhæmoglobin bands. Aids to Forensic Medicine and Toxicology Their spectra are further marked by absorption bands of titanium oxide, which reach their maximum strength in the later subdivisions of Class M. The extremely red stars compose Class N on the Harvard scale. Popular Science Monthly Oct, Nov, Dec, 1915 — Volume 86 Even the very dilute solution which I have been able to make of the material scraped from these spots gives characteristic absorption bands between the D and E lines, as they are called. The Dream Doctor Their spectra are almost totally lacking in violet light, the metallic absorption is very strong, and there are conspicuous absorption bands of carbon. Popular Science Monthly Oct, Nov, Dec, 1915 — Volume 86 |
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