Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/1b82d3dc009197470c12d0d46112b1ba.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 blind hatch是什么意思，blind hatch的翻译，blind hatch音标、读音、用法和例句_甲百匯小鸡词典
Fast-opening blind is applied in the circular hatch of pressure pipeline and pressure vessel, which can be opened and closed fast. 快開盲板是用於壓力琯道或壓力容器的圓形開口上竝能實現快速開啓和關閉的一種機械裝置。