question
2013-6-17 17:58
wilson29
question
Sometimes , we cannot see the writings clearly on a blackboard due to glare.
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1 regular reflection
2 diffuse reflection
3 refraction of light
2013-6-17 18:07
alanyip14532
�^�_ #1 wilson29 �����l
regular reflection �a...= =
2013-6-17 18:12
wilson29
�ڨ���ܺ��I�Ñ��tdiffuse flection
2013-6-17 18:21
alanyip14532
�^�_ #3 wilson29 �����l
�ªO�����Ӫ�,��diffuse reflection����= =?
2013-6-17 18:31
wilson29
�^�_ #4 alanyip14532 �����l
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2013-6-17 19:05
alanyip14532
�^�_ #5 wilson29 �����l
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2013-6-17 19:09
wilson29
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3
2013-6-17 19:13
alanyip14532
�^�_ #7 wilson29 �����l
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2013-6-17 19:21
wilson29
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2013-6-17 19:28
alanyip14532
�^�_ #9 wilson29 �����l
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2013-6-17 21:43
ababb
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2013-6-18 11:36
kingking
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