Any device that's built to receive a wireless signal at a specific frequency can be overwhelmed by a stronger signal coming in on the same frequency.
任何以特定频率接收无线信号的设备都可能被来自同一频率的更强的信号淹没。
2
The camera has a built-in failsafe device which prevents it from working if the right signals aren't received.
这部照相机内部有故障保险装置，可以令照相机在未接收到正确信号时无法运行。
《柯林斯英汉双解大词典》
3
Galileo did not invent the telescope, but on hearing, in 1609, that such an optical instrument had been made, he quickly built his own device from an organ pipe and spectacle lenses.