利用液压驱动的方式来控制拖网的开闭节省了能量消耗。
采用液压驱动的摆动网杆带动拖网驱动方式结构简单，动作可靠；
1·The component has simple structure and reliable motion by using hydraulically powered swinging townet rods to drive the townet.
这一组件采用液压驱动的摆动网杆带动拖网，结构简单，动作可靠。
2·The component has simple structure and reliable motion by using hydraulically powered swinging townet rods to drive the townet;
采用液压驱动的摆动网杆 带动拖网驱动方式结构简单，动作可靠；