英语单词分类 轻松记单词

echelon

过去式: echeloned 过去分词: echeloned 现在分词: echeloning 第三人称单数: echelons

echelon基本解释

n.职权的等级;阶层;梯队;梯次编队

v.排成梯形

echelon同义词

echelon英英释义

Noun:
  • a body of troops arranged in a line

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