| 词汇 | ultraviolet |
| 释义 | ultraviolet adjective uk /ˌʌl.trəˈvaɪə.lət/ us /ˌʌl.trəˈvaɪə.lət/(abbreviationUV) Ultraviolet light has a wavelength that is after the violet (= light purple) end of the range of colours that can be seen by humans. Light of this type causes the skin to become darker in the sun.紫外线的 The qualities of light black light brightly brilliantly coruscating dazzlingly dullness floodlit incandescent lambency luminescence luminosity lustrously non-fluorescent overcast shimmering spangly sun-drenched ultra-luminous undulled unshaded ultraviolet | American Dictionaryultraviolet adjective[ not gradable ] us/ˌʌl·trəˈvɑɪ·ə·lɪt/ physics describes light at the purple end of the spectrum (= set of colors into which light is separated), which cannot be seen by human beings Examples of ultravioletultraviolet Fragments were separated through electrophoresis on 2 % agarose gels and visualized using ethidium bromide under ultraviolet light. This system consisted of multiple tanks that were equipped with mechanical, ultraviolet, and biological filtration. It can tolerate high temperatures, desiccation, ultraviolet light and ionising radiation doses 1,000 times higher than would be fatal to humans. Here eggs are likely to be at lower concentrations and have a lower viability due to greater exposure to desiccation and ultraviolet radiation. After dehiscence (7-10 days after painting), the location of these seeds was determined using a handheld ultraviolet light at night. Why mice have evolved a photopic sensitivity that favors ultraviolet radiation is an intriguing question. An enhanced soil water content near the surface is always accompanied with a reduced peak ultraviolet flux, both reducing the chemical reactivity of the soil. It is likely that in the present study schistosome cercariae may be similarly affected by ultraviolet radiation, thus explaining their development into morphological abnormal worms. An ultraviolet laser "paints" the object as a series of horizontal layers, exposing the liquid in the tank and hardening it. Individual nuclei or groups of condensed chromosomes were positioned within this diaphragm and exposed to ultraviolet illumination. The spectrum is characterized by two maxima in the ultraviolet region at 233 and a 260 nm. Neutral density filters were calibrated for their transmission in the ultraviolet but this factor was not applied in our illustrations. Almost all of its amino acids in suggested tuning positions are identical in the halibut ultraviolet opsin (expect one amino acid). A computer simulation method for studying the ablation of polymer surfaces by ultraviolet laser radiation. The plates were also examined with ultraviolet light at 365 nm. See all examples of ultraviolet These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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