Automatic pump reversing method and device for pump truck von LIN WEIJIE, ZHANG WENYAO, HE WUJUN, LIU KAI, LUO YAOSHENG, LI YONGFENG, ZHANG XIN, ZHI DACHENG, WU XIMING, ZHANG GUOJIE, DENG ZHIQIANG, TONG YUEHUI, CHEN CHANGWEI, JIANG FALIN, GU ZHICI, TANG ZHIYONG

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