常见例句双语例句This paper introduced a method of using hopper scale to simulate bridge-type grab ship unloaded by feeder belt flow. It is implemented based on PLC program.介绍了一种利用料斗秤模拟桥式抓斗卸船机给煤皮带流量的方法，该方法基于PLC程序实现。 返回 feeder ship