Warning: file_put_contents(/www/wwwroot/ppbbu/73904.com/cache/5d663c0e1552a627f9e9292b43cb36de.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/73904.com/index.php on line 55 Roots blower pump例句_Roots blower pump英汉例句_Roots blower pump双解例句_骑士汉英词典
This paper introduced the advantage and characteristic of L-series roots blower, which could substitute the liquid ring pump in the process of hydrogen transportation. 本文介绍了L系列罗茨鼓风机在氢气输送过程中替代液环泵的优势与特点。