We must reflect what measures to take in case of any accidental collapse of a bed.
我们必须考虑一下如果床层意外坍塌应采取什么措施。
The accidental connection between Song Dynasty's collapse and spring forms the "pathos on spring" complex in Xuxi's subconscious, vented through composition of ci poems.
故国覆没与春的这种偶然关系，形成词人潜意识中的“悲春”情结，并通过词的创作加以宣泄。
Abstract :The key issue of progressive collapse (PC) design method is to determine the PC resistance demand of the structures with members removed due to accidental action.
摘要 ：结构抗连续倒塌设计方法的关键是确定因偶然作用导致局部构件失效后剩余结构的连续倒塌抗力需求。
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