Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/b5b2a89e9e6849e8324d8ff4814a7082.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 flat slide valve例句_flat slide valve英汉例句_flat slide valve双解例句_贰靶汉英词典
A slide rod driven by a step motor is arranged inside the valve chamber and the slide rod clings to the flat bottom surface hermetically. 阀腔内设置有由步进电机带动的滑块，该滑 块密封贴合在所述的平坦底面上； ip.com