jack-leg

基本解释

He is a jack-leg lawyer.
他是个不称职的律师。
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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。
The comparative analysis of stress nephogram and data of leg well area is of guiding significance to the research on how to avoid boundary effect during the calculation of jack-up's leg well area.
围井区应力图像和数据的分析，对自升式平台围井区计算中如何避免边界效应的影响具有一定的指导意义。