CRH380AL型动车组真空集便系统主要由污物箱(含中转箱及真空发生器)、便器、()、气动控制单元、电气控制单元、管路等组成。
参考答案:水增压器
_________ going to the exhibition.
A.All but he and me is
B.All but he and me are
C.All but he and I are
D.All but he and I am
洗瓶机操作过程中,故障指示灯亮时,应立即()。