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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

[In luminescence], a system where excitation and observation are from the same face of the sample [alpha] < 90°, [beta] < 180°, where [alpha] = angle of incidence of the exciting beam on the plane surface of the sample, and [beta] = angle between the exciting direction and observation direction.)  1, record 1, English, - front%20surface%20geometry

Record number: 1, Textual support number: 1 OBS

The words "alpha" and "beta" must be replaced by the corresponding Greek letters.  2, record 1, English, - front%20surface%20geometry

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

[En luminescence], [...] système dans lequel l'excitation et l'observation se font du même côté de l'échantillon [alpha] < 90°, [bêta] < 180°; [alpha] = angle d'incidence du faisceau excitateur sur la surface plane de l'échantillon et [bêta] = l'angle entre le direction de l'excitation et la direction de l'observation.  1, record 1, French, - g%C3%A9om%C3%A9trie%20de%20surface%20frontale

Record number: 1, Textual support number: 1 OBS

Les mots «alpha» et «béta» doivent être remplacés par les lettres grecques correspondantes.  2, record 1, French, - g%C3%A9om%C3%A9trie%20de%20surface%20frontale

Record 1,  Textual support,  Spanish