Echelon

['eʃəlɒn;'eɪʃ-] or ['ɛʃəlɑn]

解释:

(noun.) a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset.

(noun.) a body of troops arranged in a line.

手打:西格蒙德--From WordNet

解释:

(n.) An arrangement of a body of troops when its divisions are drawn up in parallel lines each to the right or the left of the one in advance of it, like the steps of a ladder in position for climbing. Also used adjectively; as, echelon distance.

(n.) An arrangement of a fleet in a wedge or V formation.

(v. t.) To place in echelon; to station divisions of troops in echelon.

(v. i.) To take position in echelon.

校对:玛克辛

解释:

n. an arrangement of troops in battalions or divisions placed parallel to one another but no two on the same alignment each having its front clear of that in advance.

以斯拉录入