Warning: file_put_contents(): Only 0 of 4822 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 barrier penetration in fission是什么意思，barrier penetration in fission的翻译，barrier penetration in fission音标、读音、用法和例句_沉淀汉英词典