锁定：扫描将停在发现的一个信号频率上，不再继续扫描操作。

HOLD: The scanner will stop when a signal is received, and will not restart.

youdao

锁定：扫描将停在发现的一个信号频率上，不再继续扫描操作。

HOLD: The scanner will stop when a signal is received, and will not restart.

youdao