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Providing fluorescent signalling inside e.g. buildings or tunnels, comprises incorporating ultraviolet fluorescent granular material into non fluorescent matrix
Providing fluorescent signalling inside e.g. buildings or tunnels, comprises incorporating ultraviolet fluorescent granular material into non fluorescent matrix
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机译:在内部提供荧光信号建筑物或隧道,包括将紫外线荧光颗粒材料掺入非荧光基质中
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摘要
The granular fluorescent material (1) forms part of a non-fluorescent matrix (3) and is only fluorescent when exposed to ultraviolet light. The signalling is provided by treating surfaces with fluorescent particles or flakes.
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