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Ánœ ¤¸‡nµ„µ¦nŠŸnµœÂŠ¼Šš´ÊŠÄœn ªŠ˜µ¤°ŠÁ®Èœ (visible) ¨³nªŠ°·œ¢¦µÁ¦—Ä„¨o (near infrared) ¤¸ ‡ªµ¤Â Ȋ šœ
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