Was she installing a brush on the machine?

她是在把电刷安在机器上吗？

youdao

A week with dry compressed air or a copper brush cleaning machine back condenser more than once.

每周需用干燥的压缩空气或铜刷清理机台背部冷凝器一次以上。

youdao

A brush head support reduces vibration and makes the machine extremely stable yet manoeuvrable.

前置刷头减少了震动，使机器在保持非常稳定之余更能灵活的运作。

youdao

After her brush with the political machine, she says that she hopes that the general election will allow schools to be discussed in a way that reflects the complex reality, rather than simplistic party positions.

BBC: 'Panto' politics appals head