Unverified82% confidenceDecision RuleTime unknown
投影覆盖面积与投射距离正相关,2.5米层高卧室要覆盖整个天花板需选投射角≥120°或标注覆盖面积≥30㎡的机型,小型玩具灯通常只覆盖局部墙面
1
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82%
Confidence
Long-term
Relevance
-
First Seen
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