释义 |
ech·e·lon·ing 英'eʃəlɒn美'eʃəlɑːn 基本英英搭配近义反义 n.职权的等级⁶;阶层¹⁸;梯队⁵⁸;梯次编队¹²v.排成梯形⁶过去分词echeloned现在分词echeloning三单echelons Noun: a body of troops arranged in a linea diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offsetechelon design分组设计echelon formation梯形队形echelon folds阶状褶皱forward echelon第一梯队echelon matrix梯矩阵echelon form梯形assault echelon突击梯队echelon faults雁行断层echelon clouds梯状云echelon lens阶梯透镜echelon grating阶梯光栅en echelon雁列式的echelon prism阶梯棱镜echelon folding雁行状褶皱echelon maintenance分级维修advanced echelon先头梯队echelon structure雁行构造,雁行式构造… 近义词 tier排rank等级level数量class等级stratum地层 |