Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/dd65ce0cf09b25a829c3f7570251c020.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 total reduction gear ratio是什么意思，total reduction gear ratio的翻译，total reduction gear ratio音标、读音、用法和例句_按摩法牛津词典