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Echelon
01
échelon, réseau d'échelon
a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset
02
échelon
a diagonal formation of things, especially used in military troops
03
échelon, niveau
a level or rank in an organization, profession, or society, indicating a person's status or authority within that hierarchy
Exemples
His promotion moved him into the top echelon of academic researchers in his field.
Sa promotion l'a propulsé dans le échelon supérieur des chercheurs académiques dans son domaine.
