A lot of parents will baby and the baby's new home decoration and busy rooms, environmental pollution and the safety of the children is first necessary to pay attention to and solve the problems.
有很多宝宝的父母将为新居和宝宝的房间装修而忙碌，环境污染和儿童房的安全问题是首先要注意和解决的问题。
First of all, based on the theory at home and abroad, we study the theory of safety assessment and safety precaution.
首先，结合国内外安全评价及预警系统研究现状，对安全评价理论及安全预警理论进行了分析。
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