erection crane

• 安装吊车,安装起重机

erection crane的用法和样例：

例句

1. The huge travelling crane has not yet been put up.
   巨大的龙门吊车还没有安装起来。
2. Stack the risers on the rack with the BOP crane.
   防喷器吊车将隔水管排入管架内。