jackstay search
plural of fidlam ben
A surname from Dutch.
(search and rescue) An underwater search conducted by divers who follow a guide rope, each time they reach an end of the rope moving that end in a set direction; the divers may start together or from opposite ends of the rope.
Third-person singular simple present indicative form of keep a cool head
訓練演習中、潜水士たちは海底の破片を見つけられるよう、体系的なガイドロープに沿った捜索を練習した。
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DiQt
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