bobbin disc

例句：

1. 1. The machine used to spin the yarn is a bobbin disc.
   用来纺纱的机器是一个纱锭盘。
2. 2. The bobbin disc was damaged during the spinning process.
   在纺纱过程中，纱锭盘受损了。
3. 3. The bobbin disc is essential for the proper functioning of the spinning machine.
   纱锭盘对于纺纱机的正常工作至关重要。