Warning: file_put_contents(/home/www/wwwroot/zidian/69228.com/cache/bed5e219e781268ed38bb5e1d5b08a93.txt): failed to open stream: No space left on device in /home/www/wwwroot/zidian/69228.com/index.php on line 55 新97碰碰新版国产,欧美性爱讯雷在线
2. N the derived SI unit of absorbed ionizing radiation dose or kerma equivalent to an absorption per unit mass of one joule per kilogram of irradiated material. 1 gray is equivalent to 100 rads 格雷; 國際單位制中吸收離子輻射量的一個單位 ( symbol: Gy)