คำว่า ' echelon ' ( VT )
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คำนิยามในภาษาอังกฤษ (definition) :
[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.