It used a lead wireweight at tip. On surface is white PVC Shrink Tubing.
翼尖有铅条配重,表面蒙乳白色热缩膜。
2
Analytical calculation shows that thanks to the improved measurement method, the pipe end squreness can be precisely checked by either the steel square or the wireweight.
分析计算证明,采用改进后的测量方法,则可以用直角尺或线锤测量出准确的钢管管端切斜尺寸。
3
Calculate weight of wire paid out, buoyancy from submerged cargo.