上层部分在驳船起重机的协助下已架好，将起到特别的作用。

The superior part was mounted with the help of the barge crane that was specially constructed for that purpose.

youdao

上层部分在驳船起重机的协助下已架好，将起到特别的作用。

The superior part was mounted with the help of the barge crane that was specially constructed for that purpose.

youdao