减摇鳍是一种主动式减摇装置，它采用力矩对抗原理设计。

Fin stabilizer is a kind of active stabilizer, which is designed on the principle of torque counteraction.

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减摇鳍是目前最常用且应用最成功的船舶主动式减摇装置，减摇效果可达90%以上。

Fin stabilizers are most frequently and successfully used active anti-roll equipments. The effectiveness of roll reduction can be more than 90 percent.

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