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着重从防火门启闭系统与正压逆风系统的有机配合 ,以实现其挡烟隔火功能原理方面详述了我国目前仍然普遍存在的关键问题和解决这一关键问题的新技术
Focusing on the organic cooperation between the opening and closing system of fire doors and the system of positive pressure and headwind, the key problems that are still ubiquitous in our country and the new technologies to solve this key issue