Unverified88% confidenceFactTime unknown
荧光黄绿色在白天和黄昏（阴天、傍晚）的可见性最强，橙红色在雪地和绿化背景中更突出；给孩子选背心时白天可见性靠荧光底色，夜间靠反光条，二者需兼顾
1
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88%
Confidence
Long-term
Relevance
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Unverified荧光黄绿色(fluorescent yellow-green)在黄昏和阴天可视性最强，荧光橙适合雾天，纯亮红色在夜间反光效果反而最弱，儿童背心优先选荧光黄绿91% similarUnverified荧光黄绿色在白天也较醒目，兼顾白天与夜间的可见度需求89% similarUnverified荧光黄绿色在白天可见度最高，荧光橙红次之；夜间可见度由反光条决定。选择荧光底色+高等级反光条的组合可兼顾昼夜，纯白色或深色底布白天警示效果差89% similarUnverified荧光黄绿色（fluorescent yellow-green）在白天和黄昏的可视性优于荧光橙和荧光红，因人眼视锥细胞对555nm黄绿光最敏感；橙色则在雾天和雪地背景下更醒目89% similarUnverified荧光色（黄绿/橙）与反光是互补而非替代：荧光色在白天及黄昏微光下可视性最佳，反光膜在夜间强光照射下有效，儿童安全套建议选荧光底色+反光条组合86% similar
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