Warning: file_put_contents(/www/wwwroot/ppbbu/bieo.cn/cache/4ecf3e5d498055e0f9cebcd91f21cd2d.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/bieo.cn/index.php on line 58 bottom filler例句_bottom filler英汉例句_bottom filler双解例句_衣物護欧路词典
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 發明方法爲:在反應器每個催化劑牀層的底部裝入對反應沒有影響的惰性填料。 ip.com