Warning: file_put_contents(/www/wwwroot/ppbbu/52065.com/cache/21c2dc4529e118643a8124d92175261c.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/52065.com/index.php on line 55 diffusion.coefficient是什么意思，diffusion.coefficient的翻译，diffusion.coefficient音标、读音、用法和例句_伍贰汉英词典