Warning: file_put_contents(/www/wwwroot/ppbbu/www.30232.com/cache/5d869c65ed9b4e369f1ba185a3190d82.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/www.30232.com/index.php on line 55 potential index of refraction是什么意思，potential index of refraction的翻译，potential index of refraction音标、读音、用法和例句_绍翊字体网有道词典