Warning: file_put_contents(): Only 0 of 5063 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/5256789.com/index.php on line 55 bottom filler是什么意思，bottom filler的翻译，bottom filler音标、读音、用法和例句_绿查网谷歌词典
The method of the invention is that: inert fillers without the influence on the reaction are arranged at the bottom parts of each catalyst bed layer of a reactor. 本 发明方法为：在反应器每个催化剂床层的底部装入对反应没有影响的惰性填料。 ip.com