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饮水机
- 通过按键控制售水机水流出和停止; 通过数码管显示费率、出水量及总费用;通过光敏电阻检测环境亮度,在亮度过低的情况下, 自动开灯。(Water outlet and stop of water dispenser are controlled by button; Through the digital tube display rates, water output and total cost; through the photosensitive resistance detection