telescopic antenna meaning in English

可伸缩天线
拉杆天线
套管式天线

Extend the telescopic antenna vertically
竖直地伸张伸缩式天线。
Extend the telescopic antenna and adjust the angle for optimum reception
请伸展伸缩式天线并调整角度以改善接收效果。
It is not necessary to connect this lead if there is no power antenna or antenna booster , or with a manually operated telescopic antenna
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。