It's built with something called a buttressed core: you have a strong centre section with legs that buttress it all the way up.
它的建造依赖这一个支撑核心：你有一个坚强的核心部分来保证整个塔是直的。
2
The pipeline bridge is builtup with triangle sections, its shear stiffness can be derived from the stress diagram for the truss with triangle section.
在管道跨越工程中，常用三角形截面组合管拱，由三角形截面桁梁的受力分析图，分析推导出其抗剪刚度。
3
Based on detailed rock magnetic analyses of loess-paleosol sequence at Chaona section in the central loess Plateau, a high-resolution environmental magnetic framework has been builtup for last 1.