Warning: file_put_contents(): Only 0 of 6112 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/001308.com/index.php on line 55 baffle-type例句_baffle-type英汉例句_baffle-type双解例句_零食美味英文词典
A novel piezoelectric type nozzle flapper hydroelectric servo valve was developed and its control method was researched. 摘要提出了一種新型壓電晶片型噴嘴擋板式電液伺服閥，竝對其控制方法進行了研究。