Unverified78% confidenceFactTime unknown
遮光效果自测法：将布料对折成两层贴近手机手电筒观察，几乎不透光为高遮光；单层强光下能看到明显轮廓透光的多为85%级别，商家标称遮光率无国标强制约束，需以实测为准
1
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78%
Confidence
Long-term
Relevance
-
First Seen
Sources
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