Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/839c992001eb8e485f3c8b594b9a14fb.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 contact-potential barrier是什么意思，contact-potential barrier的翻译，contact-potential barrier音标、读音、用法和例句_沉淀汉英词典