At high winding speeds, due to inertia, the rotation of the spool may lead to tension variations in the yarn.

在高速络纱时，由于惯性作用，筒子的回转会导致纱线张力的波动。

youdao

She is not perturbed by a sport that requires her to hurtle down a long winding tube on her back, feet first, at dangerously high speeds of near 90 mph (145 kph).

BBC: Luger makes Olympic history