Protection of radio-relay systems from non-geostationary satellite feeder links in the fixed-satellite service used by the mobile-satellite service in the shared frequency bands是什么意思_Protection of radio-relay systems from non-geostationary satellite feeder links in the fixed-satellite service used by the mobile-satellite service in the shared frequency bands在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句