英文: I'm building an antenna.
中文: 我在建造能与你联系的天线。英文: Extended the radio antenna.
中文: 把收音机的天线拉到最长英文: It is not necessary to connect this lead if there is no power antenna or antenna booster, or with a manually operated telescopic antenna.
中文: 如果没有自动天线或天线放大器,或手动的可伸缩天线时,不需要连接此导线。英文: New-designed antenna system uses a retarded wave principle that cuts antenna height 60%.
中文: 新设计的天线系统采用了延迟波原理,使天线高度降低了60%.英文: Extend the telescopic antenna vertically.
中文: 竖直地伸张伸缩式天线。