YT - I type Mine automatic attendance system is composed of lamp, mine attendancemachine and ground computer attendance management system.
型煤矿考勤管理系统是由矿灯，用考勤机及地面微机考勤管理系统组成的煤矿考勤系统。
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In the same way, covering attendancemachine and card reader with a metal or magnetic material will result in failure to work for the attendancemachine.
同样道理，用金属或磁性物体遮挡考勤机和打卡头也会导致考勤机不能打卡工作。
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Abstract: YT-I type Mine automatic attendance system is composed of miner's lamp, mine attendancemachine and ground computer attendance management system.