oval otter board 椭圆型网板
dual-purpose otter board 中底层用网板
oval flat otter board 椭圆形平面网板
V-type curved otter board V型曲面网板
vertical V type otter board 立式V型曲面网板
dual otter board system 双网板装备
The horizontal spread of the rectangular V-type curved otter board increased by 43.
矩形V型曲面网板的水平扩张力可增大43。
Rectangular V-type curved otter board and V-type curved otter board were tested to compare the operation characteristics and production effect during the three trips.
通过3个航次矩形V型曲面网板与V型网板作业性能和生产效果的对比试验。
In addition, the fire-retardant plastic films provided by the utility model can be transparent and the back face of the aluminum foils can be connected with at least one layer of otter board material.
本实用新型 所述阻燃塑料薄膜基材可透明，所述铝箔基材背面可连接有至少一层的 的网板材料。
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