如何翻译下面两句?saturation column? 第一句中run vessel是啥东东?这个还在困惑中 第二句feed is distributed on the top, over the hold down plate, and is saturated by hydrogen flowing down through the inert packing.根据语法,flowing down through the inert packing还是应该修饰hydrogen的,处于saturation反应的需要而让氢气和进料顺流似乎也说得通吧查看更多