Last Updated：2025/11/30
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The ship's rangekeeper calculated firing solutions through storms and rolling seas.
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The ship's rangekeeper calculated firing solutions through storms and rolling seas.
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Related words
rangekeeper
Noun
historical
Japanese Meaning
（軍事・歴史用語）初期の電気機械式計算装置で、火砲の射撃指令（弾道計算）を補助するために用いられた装置。
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