n.大梁；横梁
The crossbeam of this workshop is made of T-shaped steel. 这个厂房的横梁是用丁字钢搭建而成的。
This papercan be regarded as a theoretical reference for the structure design and improvement of the crossbeam of hydraulic forging press. 可以作为液压快锻机中横梁设计和结构改进的理论参考。
