Warning: file_put_contents(): Only 0 of 4974 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/totle.com.cn/index.php on line 55 radioactivity prospecting例句_radioactivity prospecting英汉例句_radioactivity prospecting双解例句_乐豆毛深蓝词典
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。