The unit switches into the first communication mode when the indicator is absent from the signal.

以及当所述信号中没有所述指示符时将所述单元切换至所述第一通信模式。

youdao

The unit switches into the first communication mode when the indicator is absent from the signal.

以及当所述信号中没有所述指示符时将所述单元切换至所述第一通信模式。

youdao