fire exits shall be unobstructed
... it, then it would be perfect, if it can't do, it does not matter 走火通道须畅通无阻 » fire exits shall be unobstructed 正在寻找它 » Looking for it ..
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fire exits shall be unobstructed
消防通道应畅通无阻
以上为机器翻译结果，长、整句建议使用 人工翻译 。