B. Switch "ON" the transmitter and the neckband receiver unit.

乙开关的“开”发射机和领口接收单元。

youdao

The Rosemount 702 Wireless Discrete Transmitter takes a variety of non-powered switch types such as pressure, flow and level switches as input.

罗斯·蒙特702无线发射器采用离散各种非供电，如压力，流量，液位开关的输入开关类型。

youdao

I just have to flip a switch on the transmitter... which never gets turned off.

我只需要翻转的发射器…永远也不会被关闭的开关。

youdao

Engineers from Arqiva, which owns the transmitter, had to switch off the power supply to the transmitter to assess the damage to the structure.

BBC: Bath transmitter is fixed after arson attack

The Olympian, Dame Mary Peters, has been asked to turn off the analogue switch at the Divis transmitter in Belfast.

BBC: Digital Switchover

The pen works as a transmitter: When you press down to write, a switch inside the pen turns it on.

WSJ: Pen and Paper Find a Place in the Digital World