As David explains, before electric motors were installed in factories, machines were arranged around centralized steam engines, to which they were connected by belts and pulleys. Self-standing electrical motors allowed machines, the workers operating them, and their activities all to be reorganized in more efficient ways.
保罗解释说，在工厂引进电动机之前，机器都围绕着蒸汽机来布置，由皮带和滑轮进行连接。而自立式电动机则允许机器，操作工人，以及生产活动以更有效的方式进行重组。