Fin stabilizers are most frequently and successfully used active anti-roll equipments. The effectiveness of rollreduction can be more than 90 percent.
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。
2
Therefore, he proposes to partially roll back the rate reduction in Central Excise duties and enhance the standard rate on all non-petroleum products from 8 per cent to 10 per cent AD valorem.
The method of the invention has the characteristics of simplicity, convenient operation, prolonged service life of the casting roll, and reduction in production cost.