jack-in type

基本解释

Bohai8 jack-up platform was refitted from slot type to cantilever-beam type and is in its later service period now.
渤海8号平台是一座由槽口式改为悬臂式的自升式平台，并已经进入后服役期阶段的老龄化平台。
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。
Therefore, it is convinced that models and methods of optimum lectotype in this thesis are effective and can be a useful tool in the concept design of the jack-up truss-type leg.
综上表明，本文所采用的优化模型和方法简单实用，优化效果显著，为自升式平台桁架腿的概念设计提供了一种有效工具。