The received satellite signal data are available to the public. A Geodetic Survey Information System has been set up to facilitate the co-ordination and dissemination of survey control information.是什么意思_The received satellite signal data are available to the public. A Geodetic Survey Information System has been set up to facilitate the co-ordination and dissemination of survey control information.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句