Warning: file_put_contents(/www/wwwroot/ppbbbu/202081.com/cache/0ae95ca4d344570367bbef3d80c27113.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/202081.com/index.php on line 55 cyclones例句_cyclones英汉例句_cyclones双解例句_2020年的事情英文词典
An experimental investigation was made of the pressure drop ratio characteristics of oil-removing cyclones in a room bedstand. 在室內試騐裝置上對單錐除油型水力鏇流器的壓降比特性進行了試騐研究。