“大梁”造句

这根大梁承受了上面那一层的全部重量.
This beam bears the whole weight of the upper floor.

窗框在大梁的重压下垮掉了.
The window frame folded up under the heavy weight of the beam.

这些大梁是由支架撑着.
The girders are carried on trestles.

• #大梁