天线

• The birds perched upon the television aerial .
  那些鸟栖在电视天线上。
• The birds perched on the television aerial .
  鸟停在电视天线上。
• They erected a television antenna on the roof ..
  他们在屋顶上竖起了电视天线。
• They erected a television antenna on the roof ..
  他们在屋顶上架起了电视天线。
• Position the aerial for the best reception .
  把天线安装在接收效果最好的位置上。
• These waves struck the antenna of a receiving station .
  这些波碰到了接收台天线。
• So a separate rotating aerial is used for that purpose .
  为此需要用一种单独的旋转天线。
• Scanning in declination may be achieved by tilting the aerial system .
  进行赤纬扫描时，可以把天线倾斜。
• Power is being delivered along the wires which lead into the antenna .
  沿着通往天线的导线有功率传输着。
• Radio astronomy today is armed with the largest antennas in the world .
  射电天文学拥有世界上最大的天线。