Warning: file_put_contents(/www/wwwroot/ppbbu/52065.com/cache/88197972468028bba50ee73c28027f22.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/52065.com/index.php on line 55 frictional metal prop是什么意思，frictional metal prop的翻译，frictional metal prop音标、读音、用法和例句_伍贰汉英词典