正常生产的滤棒直径大于初始设定值时,控制转换器会收到一个压力“大”的信号,此时,压力开关闭合,()得电。
参考答案:继电器
The Yellow Mountain is one of the most famous m__1__ in China. Every year l__2__ of Chinese people and foreigners visit it. It is not f__3__ from here. You can s__4__ about two hours getting there by bus. You can also go there by train o__5__ by plane. When you are c__6__ the mountains, you can e__7__ the sea of clouds, wonderful trees and rocks (岩石) a__8__ you. In the e__9__ morning when the sun rises (升起),the sun looks b__10__. It is really a good place to go.
站内或站内道口两端不设司机鸣笛标。