{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why should we pay attention to the information displayed on the device screen?","a":"Prevention of faults: By focusing on warning and error messages displayed on the device screen, users can discover potential problems in a timely manner, take appropriate measures to avoid device failures, and reduce maintenance costs."}]}],"pr":"a5c0db181c29e093435ead448a969f508e701ccd63a2eb984963951eb792b577"}