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[quote]NASA D員工又幾好笑:^( :^(出現鳥:^(唔出文都搵下片清楚啲咁解釋magnetic field點倒轉please:^(
[quote]NASA D員工又幾好笑:^( :^(出現鳥:^(
[quote]NASA D員工又幾好笑:^( :^(
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