Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/b6f30863dbbaab11d8215423a20c4eb5.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 bar-type slide rule是什么意思，bar-type slide rule的翻译，bar-type slide rule音标、读音、用法和例句_沉淀汉英词典