“发射机”造句

他们测试了这台发射机的发射范围.
They tested the range of this transmitter.

只要在发射机中存在调制信号, 就含有旁频带出现.
When there is a modulated signal from transmitter, there are side bands.

他们住在无线电发射机的有效范围以内.
They live within range of the transmitter.