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Рокхоппер
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Rockhopper, английский
Gear that is attached to the "foot rope" of a trawl net. they vary in their design depending on the roughness of the seabed that is being fished: from small rubber discs for very smooth, sandy ground, to large metal balls, up to 0.5 m in diameter for very rough ground. they can also be designed to lift the net off the seabed when they hit an obstacle.
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Руководство по национальным стандартам, русский
Мгновенная заморозка, русский
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