高架跨线候车室 elevated track-crossing waiting room

名词解释什么是线下式站房 the passenger building is located below the platform; 线下式站房 the passenger building is located below the platform名词解释定义是什么?

名词解释什么是特大型站房 especially big passenger building; 特大型站房 especially big passenger building名词解释定义是什么?

名词解释什么是大型站房 larger passenger building; 大型站房 larger passenger building名词解释定义是什么?

名词解释什么是中型站房 medium passenger building; 中型站房 medium passenger building名词解释定义是什么?

名词解释什么是小型站房 small passenger building; 小型站房 small passenger building名词解释定义是什么?