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

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。

2·The advanced hoisting technique and control method of prefabricated box girder over sea including spreader gear design, floating crane improvement and transport barge have been expounded in details.

详细阐述了预制箱梁海上新的吊装工艺和控制方法，包括吊具设计、浮吊改造、运输驳改造。

3·A giant crane and a barge have already been brought to pull the stricken airliner.

一个巨大的起重机和驳船已提请拉受灾客机。