Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/f285bb954c785936a91df6146d604e36.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 effective drum diameter是什么意思，effective drum diameter的翻译，effective drum diameter音标、读音、用法和例句_沉淀汉英词典