Warning: file_put_contents(): Only 0 of 5576 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/73904.com/index.php on line 55 low-atomic-number material是什么意思，low-atomic-number material的翻译，low-atomic-number material音标、读音、用法和例句_骑士汉英词典
The density measurement technology of foam material with low atomic number was established by low energy X-ray radioscopy . 採用低能X射線對低原子序數泡沫樣品進行透射照相，以膠片作爲記錄介質，對材料密度進行測量。