The reel-type lay barge was designed to lower offshore pipeline construction costs by increasing the laying rate and decreasing the time.
卷筒式铺管船可增大铺管速度并减少铺管时间，从而减少海洋管道的建设成本。
2
When a hand wheel is toggled, the nut connecting plate drives the hand piece of the suspended type submerged arc welding machine and a wire reel bracket to move axially.
拨动手轮时，螺母连接板带动悬挂式埋弧焊接机头与焊丝盘支架轴向移动。
3
This results in a line that is 10 times stronger than steel and winds easily on to any type of reel without retaining memory.