美国继电器市场自80年代以来发生了很大的变化。现在的继电器已由原来利用汞流动的制造技术转变为固态电子技术,使传统继电器逐渐退出市场。新的继电器更精巧、重量更轻,可有较高的电流或电阻,已被广泛采用于国防武器、工业处理控制、汽车电子系统、电子器具、电子消费品和计算机。 美国经济一度不景气对继电器制造 The American relay market has undergone great changes since the 1980s. Today’s relays have been transformed from solid-state electronic technologies using mercury-fluid manufacturing technology, leaving conventional relays gradually out of the market. The new relays are more compact and lighter in weight, have higher currents or resistance, and have been widely used in defense weapons, industrial process control, automotive electronic systems, electronic appliances, consumer electronics and computers. U.S. economy was sluggish for relay manufacturing