alarm threshold 报警门限 ; 报警响应阀 ; 报警阈值 ; 警报阈
Threshold Level of Alarm 告警门限值
optical power alarm threshold 告警光功率阈值
threshold for alarm 报警门限
Threshold Crossing Alarm 越限告警
alarm threshold value 报警阈值
alarm m threshold 报警门限
alarm-off threshold 停止告警阈值
threshold alarm
阈值报警
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Using Bluetooth 4.0 and a custom Android app, you designate your PC as the one that needs protection, and then you set a threshold for when the alarm should go off (the range is customizable, but doesn't go beyond five feet).
ENGADGET: Intel demos Bluetooth-based anti-theft alarm for Ultrabooks, we go hands-on (video)
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