There are very strict codes on removing, drilling or notching load bearing walls and floor joist.
有非常严格的代码去除,或缺口钻进墙壁和地板承载桁架。
The floor joist was cracked and fractured, but no debris was deposited in the basement, as the subflooring remained intact.
地板托梁破裂折断,但是在地下室并未落下碎片因地板下面安然无恙。
The floor joist was cracked and fractured, but no debris was deposited in the basement, as the subflooring remained intact.
地板托梁破裂折断,但是在地下室并未落下碎片因地板下面安然无恙。
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