As this worker used the machine and became more productive, the price of washers would fall, demand for washers would rise, more washers would have to be made, and there'd be more work for his pals to do.
Ce docker utilisant la machine et devenant plus productif, le prix des rondelles chuterait, la demande augmenterait, il faudrait faire plus de rondelles et ses camarades auraient plus de travail.