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The Collaborative International Dictionary of English v.0.48 (gcide)

Chromophore \Chro"mo*phore\, n. [Gr. ? color fe`rein to bear.]
(Chem.)
Any chemical group or residue (as {NO2}; {N2}; or {O2}) which
imparts some decided color to the compound of which it is an
ingredient.
[1913 Webster]

The Free On-line Dictionary of Computing (foldoc)

Object-Oriented. {Object-oriented database} language used in
the {Altair} project. Implemented as an {interpreter}. GIP
Altair, Versailles, France. Francois Bancilhon et al, in
Advances in Object-Oriented Database Systems, K.R. Dittrich
ed, LNCS 334, Springer 1988. See {CO2}.

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O2	查看　O2　在Google字典中的解释	Google英翻中〔查看〕
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英文字典中文字典相关资料:

Oxygen - Wikipedia
They realized that the known reversible reaction 2BaO (s) + O2 (g) ↔ 2BaO2 (s) was deactivated by the formation of barium carbonate from carbon dioxide in the air; treating air to remove the carbon dioxide allowed the reaction be reversed indefinitely
O2 - Essential For Living
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Oxygen | O2 | CID 977 - PubChem
Oxygen (O2) is reduced by both enzymatic and nonenzymatic processes to the superoxide radical (O2-) This radical species of oxygen is postulated to be formed in vivo in animals through activity of some iron - sulfur oxidation-reduction enzymes and certain flavoproteins
Oxygen - Element information, properties and uses | Periodic Table
Element Oxygen (O), Group 16, Atomic Number 8, p-block, Mass 15 999 Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
Oxygen - Simple English Wikipedia, the free encyclopedia
Oxygen is a chemical element It has the symbol O and atomic number 8 It is a colorless, odorless, and tasteless gas at 25 degrees Celsius at Standard atmosphere (a pressure) Oxygen is part of the air we breathe It makes up about 21% of Earth’s atmosphere It is the third most common element in the universe, after hydrogen and helium Oxygen is part of the chalcogen group on the periodic
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Allotropes of oxygen - Wikipedia
There are several known allotropes of oxygen The most familiar is molecular oxygen (O2), present at significant levels in Earth's atmosphere and also known as dioxygen or triplet oxygen Another is the highly reactive ozone (O3) Others are: Atomic oxygen (O1), a free radical Singlet oxygen (O* 2), one of two metastable states of molecular oxygen Tetraoxygen (O4), another metastable form

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