擋住紅外線發射，接收的值竟然變大
0:09
Added: 4 years ago
From: sn903209
Views: 1,258
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  • 你手指本身都會發射紅外線（體溫）

    ChiYuenT 11 months ago

  • 可是接收和發射隔著一片板子。接收與發射是平行的

    sn903209 3 years ago

  • 係吾係因為你手指將集束既紅外線散射入接收

    jamesy02312 3 years ago

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