XK beacon is very unsteady. It does not work properly. There is a call sign, but it is swinging, our ADF is swinging all.是什么意思_XK beacon is very unsteady. It does not work properly. There is a call sign, but it is swinging, our ADF is swinging all.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句