Wrap cylindrical pipes with adhesive tape with a width of 0.25m, a length of 36m and a cross-sectional circumference of 0.6m (1). If all pipes are wrapped with adhesive tape, at least

1, when the tape can be cut: the total length is 36/0.25x0.6 = 86.4m

2. When the tape cannot be cut, it will continue to be wound to wrap the pipeline:

First, the first riser is wound once, and then the whole pipe is wrapped with a pitch of 0.25m.,

The total length is 86.4+0.6 = 87m.