The hoisting airbag is a new type of pneumatic jack and used in special hoisting territory.
起重气袋是一种新型气动千斤顶，用于特殊起重领域。
2
This paper discusses the two structure forms of cantilevers of jack-up drilling platforms, and the type selection of news jack-up drilling platforms in our country.
主要阐述了自升式钻井平台悬臂梁的两种结构形式特点，以及目前我国新建自升式钻井平台的选型目标。
3
Bohai8 jack-up platform was refitted from slot type to cantilever-beam type and is in its later service period now.