性能化防火设计中人员能否安全疏散用可用疏散时间、所需疏散时间来判断。
The safe egress of the people in the design can be judged by the available egress time and required egress time.
通过分析火灾时影响人员安全疏散的各主要因素，得出了确定人员逃生时可用疏散时间的条件。
Based on the analysis of the main factors that affect the safe egress of the occupants, defines the conditions of determining the available safe egress time.
人员能否安全疏散取决于人员的必需安全疏散时间是否小于建筑物的可用安全疏散时间。
People can safely evacuate which depends on the required safety egress time of people less than the available required safety egress time of building.
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