在从设计到使用的过程中，由于设计疏忽、施工失误、非正常使用、自然及人为灾害等因素的影响，房屋的结构承载力降低，从而影响建筑的安全使用。
Due to natural and manmade adverse condition such as miscalculation in design, construction or improper use, lots of buildings suffer structural carrying capacity, which undermines public safety.
在从设计到使用的过程中，由于设计疏忽、施工失误、非正常使用、自然及人为灾害等因素的影响，房屋的结构承载力降低，从而影响建筑的安全使用。
Due to natural and manmade adverse condition such as miscalculation in design, construction or improper use, lots of buildings suffer structural carrying capacity, which undermines public safety.
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