And the design of household door special requirements must fire door, such as fire control center, archives room, warehouse and other valuables, usually choose a or B fire door.

还有设计有特殊要求的须防火的分户门，如消防监控指挥中心、档案资料室、贵重物品仓库等的分户门，通常选用甲级或乙级防火门。

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Let's move to central fire control room.

让我们移步消防控制中心。

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It mainly deals with the design method and principle of fire damper, positive pressure control, ventilation of stair room and running logic of HVAC in emergence situation.

正压控制的设计原则和方法；楼梯间的通风设计以及紧急状态下HVAC系统的运行逻辑设计。

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It is one of two options going before the two fire authorities - the other being more collaboration as happens with the existing shared control room.

BBC: Suffolk fire crews in Ipswich town centre