在第一次按键后5秒内按同一按键，表情灯一直长亮。第三次按同一按键灯熄灭。
Press button firstly after 5 second, press button secondly the light display will last long time. When press button thirdly the light display will turn off.
当这些按钮之一是推动下，在前面和后面的蓝色系统状态指示灯闪烁液晶显示器面板，直到其中一个按键被按下了。
When one of these buttons is pushed, the LCD panel on the front and the blue system status indicator on the back blink until one of the buttons is pushed again.
数字控制电路负责控制洗衣机的工作过程，主要由AT89S51单片机、两位共阴数码管、按键、蜂鸣器、LED指示灯组成；
Digital control circuit takes charge of controlling the working course. it consists of AT89S51, double-figured common-cathoded numeral display, buttons, buzzer, LEDs.
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