But when a black hole rotates, it works a bit like a spinning washing machine.

但当黑洞旋转时，它的工作原理有点旋转的洗衣机。

These spinning machines could produce 500 times what a person could.

这些纱机的产量是人工的500倍。

Somebody made a spinning machine that was Cartwright's weaving machine, and somebody else made a machine that basically ran those giant 50-pound scissors.

有人制造了种纱机， 这是卡特特的布机，还有人制造了种基本上可以操作那些巨大的50磅剪刀的机器。

When it comes to the textile industry, the amount of cotton a worker could process was increased by a factor of 500 when the steam-powered cotton spinning machine was invented.

当谈行业时，蒸汽动力的棉机发明后， 工人处理的棉花量增加了500倍。

That rejection and China's abandonment of oceangoing ships (as well as of mechanical clocks and water-driven spinning machines) are well-known historical instances of technological reversals in isolated or semi-isolated societies.

这种拒绝以及中国放弃远洋船舶（以及机械钟和水力纱机）是孤立或半孤立社会中技术逆转的众所周知的历史实例。