最終更新日：2024/08/05
(nautical) A weighted line with distances marked off at regular intervals, used to measure the depth of water under a boat.
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sounding line
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(nautical) A weighted line with distances marked off at regular intervals, used to measure the depth of water under a boat.
sounding line
DiQt（ディクト）
無料
★★★★★★★★★★
