high gain antenna（高增益天线）是什么意思？音标发音+图解场景

高增益天线 /ˈhaɪ ˈɡeɪn antˈɛnə/ n

English: high gain antenna · 高增益天线

释义：Principal antenna pointed toward Earth to transmit large quantities of scientific data as well as photographs.

这个词出现在以下图解场景（2）

海盗号着陆器 维京号轨道器