A trolley was used in concreting for the vertical wall. The sheet steel form on the trolley was braced by some exterior set bolts. The automatic agitating lorry (type AN3500) made in Yugoslavia and a concrete pump (type NP-74BTS) was used. 隧洞边墙混凝土施工采用外撑轨道式钢模台车，混凝土运输使用南斯拉夫产AN3500型自动拌和车，配合NP－74BTS型混凝土泵入仓。 concrete pump 混凝土泵车 不太明白是你要翻译混凝土泵车这个词，还是要一系列的词组，希望可以帮到你 A trolley was used in concreting for the vertical wall. The sheet steel form on the trolley was braced by some exterior set bolts. The automatic agitating lorry (type AN3500) made in Yugoslavia and a concrete pump (type NP-74BTS) was used. 隧洞边墙混凝土施工采用外撑轨道式钢模台车，混凝土运输使用南斯拉夫产AN3500型自动拌和车，配合NP－74BTS型混凝土泵入仓。 concrete pump 混凝土泵车 不太明白是你要翻译混凝土泵车这个词，还是要一系列的词组，希望可以帮到你