?上升管

Keywords pyrolyzer;\ ascension pipe;\ downcomer;\ bottom collecting piper; 裂解炉;上升管;下降管;下集气管;

?上行管

... 回行管 return pipe 上行管 ascending tube; ascension pipe 下行管 downtake ...

?裂解炉

Keywords pyrolyzer;\ ascension pipe;\ downcomer;\ bottom collecting piper; 裂解炉;上升管;下降管;下集气管;