echeloning

英['eʃəlɒn] 美['eʃəlɑːn]
  • n.职权的等级;阶层;梯队;梯次编队v.排成梯形
echeloned echeloned echeloning echelons
Noun:
  1. a body of troops arranged in a line

  2. a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset