They're setting up the machine for a new run.

他们正在设置机器让其重新运转。

" Anyhow, they soon began to find out their mistake, and that only slaves and slave-holders could live solely by setting machines going" .

“无论如何， 他们很快就开始发现自己的错误， 只有奴隶和奴隶主才能靠让机器运转来生活” 。