This line represents a circular loop like the Flip Flap's.

这条线代表一个类似于 Flip Flap 的循环。

Because of our chat, he became so obsessed with the circular loop problem that he made a bunch of looping-coaster-simulation charts.

因为我们的聊天，他变得非常痴迷于回环轨道问题，他做了一堆循环过山车模拟图表。

And companies like Queen of Raw and Trove and Recuratecreate circular loops for textiles, apparel and other branded goods.

Queen of Raw、Trove 和 Recurate 等公司为纺织品、服装和其他品牌商品创建循环环。