ハンドログじ字FuriganaMeanings1nounhand logA nautical device for measuring a ship's speed, consisting of a line with a log chip and a sandglass. Technical term used in maritime contexts.昔むかしの船ふねでは、ハンドログを使つかって速そく度どを測はかった。On old ships, they measured speed using a hand log.
