客户如果没有提前将标识项目的预算制定好的话，对标识制作商来说也是一个危险信号。
The client who will not state a sign project budget in advance is another major red flag.
设备标识对每个摄像机提供数字信号从而支持其职能性和系统管理。
Device identification supplies a digital signature for each camera to support accountability and system management.
水下目标回声信号的检测是主动声纳目标识别的重要内容。
Detection of echo signal is an important part of underwater object recognition.
水下目标回声信号的检测是主动声纳目标识别的重要内容。
Detection of echo signal is an important part of underwater object recognition.
应用推荐