The direction of luminiferous evacuation indicator is fixed in complex fire accident scene，that is difficult to play safe and effective role in the evacuation instructions.
发光型疏散指示牌
指引方向固定不变，在复杂火灾事故现场难
安全有效疏散指示
。
The direction of luminiferous evacuation indicator is fixed in complex fire accident scene，that is difficult to play safe and effective role in the evacuation instructions.
发光型疏散指示牌指引方向固定不变，在复杂火灾事故现场难安全有效疏散指示。
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