alertor

基本解释

If the operator is either inattentive or napping,the alertor sounds an alarm.
如果操作人员精神不集中或打盹儿，本装置就会发声报警。
If the operator is either inattentive or napping, the alertor sounds an alarm.
如操作人员精神不集中或打盹儿，本装置就会发声报警。
A device to watch the operator who watches the machine.If the operator is either inattentive or napping, the alertor sounds an alarm.
一种对监视机器工作情况的操作人员进行监视的装置。如操作人员精神不集中或打盹儿，本装置就会发声报警。
A device to watch the operator who watches the machine.If the operator is either inattentive or napping,the alertor sounds an alarm.
一种对监视机器工作情况的操作人员进行监视的装置。如操作人员精神不集中或打盹儿，本装置就会发声报警。
Keywords phone monitor;gas alertor;voice record and play circuit;
电话监控器;瓦斯报警器;语音录放电路;