Warning: file_put_contents(/www/wwwroot/ppbbbu/5356789.com/cache/9aaf153e2b6b0070027093e9610fefc0.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/5356789.com/index.php on line 55 baffle-type例句_baffle-type英汉例句_baffle-type双解例句_零六五六深蓝词典
A novel piezoelectric type nozzle flapper hydroelectric servo valve was developed and its control method was researched. 摘要提出了一种新型压电晶片型喷嘴挡板式电液伺服阀，并对其控制方法进行了研究。