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Definitions for
"Echelle"
Keywords:
ladder
,
chelle
,
bodice
,
diffraction
,
grating
Literally, from the French, Ladder. grating in which the lines are ruled much further apart than those of an ordinary diffraction grating. This gives the échelle a very high resolution over a short wavelength range when the high orders are used.
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ladder-like decoration of braid, ribbons and bows which extend across the opening of the bodice.
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