Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/8d4635e07e509b4032b0c767a6895d89.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 effective back radiation是什么意思，effective back radiation的翻译，effective back radiation音标、读音、用法和例句_沉淀汉英词典