[电] top-loaded vertical antenna
dǐng duān fù zài chuí zhí tiān xiàn ㄉㄧㄥˇ ㄉㄨㄢ ㄈㄨˋ ㄗㄞˋ ㄔㄨㄟˊ ㄓˊ ㄊㄧㄢ ㄒㄧㄢˋ