echelon

名词 echelon:

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

ech.e.lon

n.（名词）

A formation of troops in which each unit is positioned successively to the left or right of the rear unit to form an oblique or steplike line.
梯队：军队的一种队形，其中每个编群都相继排列在后一编群的左边或右边，形成斜线或梯形线
A flight formation or arrangement of craft in this manner.
梯形飞行队：以此方式编排的飞行队形
A similar formation of groups, units, or individuals.
梯形排列：群体、单位或个人的类似排列
A subdivision of a military or naval force:
陆军或海军的分部：
例句：
a command echelon.
司令部

A level of responsibility or authority in a hierarchy; a rank:
等级，阶层：等级制中的权力或责任等级；阶层：
例句：
a job in the lower echelon of the corporation.
一份公司底层工作

v.tr.intr.（及物动词和不及物动词）
ech.e.loned,ech.e.lon.ing,ech.e.lons
To arrange or take place in an echelon.
排成梯队：排列成梯队或以梯队形式发生

来源：
French échelon
法语 échelon
from Old French eschelon [rung of a ladder]
源自 古法语 eschelon [梯级]
from eschiele [ladder]
源自 eschiele [梯子]
from Late Latin sc3la
源自 后期拉丁语 sc3la
from Latin sc3lae [steps] * see skand-
源自 拉丁语 sc3lae [级阶] *参见 skand-