为了提高公交车投币箱的安全性，系统采用信息纽扣ds1991的密钥开启投币箱的密码锁。
In order to improve the security of bus coin boxes, the system USES key of the iButton DS1991 to open the password lock of coin boxes.
为了提高公交车投币箱的安全性，系统采用信息纽扣ds1991的密钥开启投币箱的密码锁。
In order to improve the security of bus coin boxes, the system USES key of the iButton DS1991 to open the password lock of coin boxes.
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