常見(jiàn)例句Mobile satellite communications began in 1976 with the launch by COMSAT of MARISAT satellites to provide communications to ships at sea. 移動(dòng)衛(wèi)星通訊始於1976年由海洋衛(wèi)星公司的通訊衛(wèi)星來(lái)爲(wèi)海上的船衹提供通信。MARISAT system 海事衛(wèi)星通信系統(tǒng),海洋衛(wèi)星系統(tǒng) 返回 Marisat