単たん縦じゅう陣じん

noun

single line formation; line of battle

Naval term for a formation where ships are arranged in a single column, historically used in line-of-battle tactics.

• 艦かん隊たいは単たん縦じゅう陣じんを組くんで敵てき艦かんに接せっ近きんした。

  The fleet approached the enemy ships in a single line formation.