常見(jiàn)例句A new millimeter-wave omnidirectional dielectric rod metallic grating antenna is developed successfully.研制成功了一種新型金屬柵加載毫米波全向天線。The indoor ceiling omni-directional antenna is usually installed on the ceiling to provide omni-directional coverage indoors.室內(nèi)吸頂全向天線一般安裝在室內(nèi)天花上，用作室內(nèi)的全向覆蓋。 返回 nondirectional antenna