Warning: file_put_contents(/www/wwwroot/ppbbu/cp667.com/cache/56e873f1b2de92ad05f9ad734f183321.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/cp667.com/index.php on line 55 radioactivity prospecting例句_radioactivity prospecting英汉例句_radioactivity prospecting双解例句_淳朴汉英词典
To resolve the problem, it is necessary to ascertain the origin of radioactivity with geological prospecting as the first step. 要從源頭上解決建材放射性超標的問題，必須查清其中放射性的來源，竝從地質勘查抓起。