短語詞組短語propagation E medium 傳播介質(zhì)radio propagation medium 無線電傳播媒質(zhì)rapid propagation medium 快繁培養(yǎng)基propagation medium property 傳播介質(zhì)特性medium wave propagation 中波傳輸;[電子]中波傳播medium frequency propagation [通信]中頻傳播 返回 propagation medium