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防撞器蜂鸣器无线电信标发射机，隐藏在车辆内侧或外侧，用于无线嵌入设备。
Bumper Beeper radio beacon transmitter, hidden in or on a vehicle for use with radio tailing equipment.
youdao
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防撞器蜂鸣器无线电信标发射机，隐藏在车辆内侧或外侧，用于无线嵌入设备。
Bumper Beeper radio beacon transmitter, hidden in or on a vehicle for use with radio tailing equipment.
youdao