伟大领袖毛主席教导我们:“多想出智慧。”水阻试验台的升降极板电动机是用一对普通倒正磁力起动器控制的。它的控制线路在电工中来说是一种最简单的控制线路,所以不引起人们对它注意。在水阻试验台工作一段时间就会发觉:调外特性和功率 The great leader, Chairman Mao, taught us: “Think more of wisdom.” The lifting plate motor of the water resistance test stand is controlled by a pair of normal positive magnetic starters. Its control circuit is one of the simplest control circuits among electricians, so it does not draw attention to it. In the water resistance test bench work will be found for some time: transfer characteristics and power