我怀疑天花板上那根横梁的强度。
I have doubts about the strength of that beam in the ceiling.
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横梁已用螺丝柠在垮木上。
The beam was screwed down to the cross bar.
船舶上的舷侧板之间，甲板横梁的支撑被供应通过支柱。
Between the side frames on a vessel, support for the deck beams is provided by ____.
“门很矮”，头肯定是撞到门的“横梁”上。
The door was so low that I hit my head on the lintel.
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