看过一个纪录片做过实验,人造钻石在没有光源的情况下一片暗淡,天然钻石在没有光源的情况下仍然熠熠发光
看过一个纪录片做过实验,人造钻石在没有光源的情况下一片暗淡,天然钻石在没有光源的情况下仍然熠熠发光
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