1. There is a radio in the room.
    房间里有一台收音机.

2. The radio programme was recorded.
    无线电广播节目被记录下来了。

3. The beam has begun to sag.
    横梁开始下垂了。

4. These factories produce tubes , transistors , radio sets and TV sets.
    这些工厂生产电子管、晶体管、收音机和电视机。

5. The radio gave a warning of bad weather.
    广播电台发出了坏天气的警报。

6. This depends on the precise radio- frequency of the 21- cm wavelength, or 1420 megacycles per second .
    这种方法依靠21厘米波长或每秒1420兆周的精确无线电频率。

7. This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second.
    这种通迅联系要靠21厘料波段，即每秒1420兆周的精确无线电频率。

8. The scanning laser beam was an ideal device for reading these markings, and so the Universal Product Code was born.
    能进行扫描的激光是一阅读这些标志的理想手段，因而通用条形码便应运而生了。

9. The radio clicked on. Rock music blasted forth.
    收音机 "嘟"地一声，摇滚乐就 "哗啦"地响开了。

10. Turn that radio down so your mother and I can't hear it.
    把收音机关小点，这样我和你妈妈就听不到了。