第二频道 meaning in English
bbc two
Examples
- Because waves can vary from 18 feet for channel 2 television to three inches for cellular telephony , proper antenna length is key to reception
因为电波波长从第二频道电视用的5 . 5公尺到行动电话用的7 . 6公分都有，所以适当的天线长度正是收讯品质的关键。
bbc two