scroll shaft

例句：

1. 1.The scroll shaft was used to lift heavy objects.
   卷轴轴用来提起重物。
2. 2.The scroll shaft is a crucial part of the machine.
   卷轴轴是机器的关键部分。
3. 3. The scroll shaft was damaged during the construction.
   卷轴轴在建设过程中受损。