Warning: file_put_contents(/www/wwwroot/ppbbu/80125.cn/cache/69628271497367dbd0ed3b87500a8a36.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/80125.cn/index.php on line 58 suction stop valve例句_suction stop valve英汉例句_suction stop valve双解例句_食材铺反向词典
Pump stop, they would first close the discharge stop valve, and switch to a complete halt until pump suction stop valve was closed. 泵停车时，应先关闭排出停止阀，并待泵完全停转后关闭吸入停止阀。