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Terms for subject Jewelry containing to be | all forms | exact matches only | in specified order only
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Diamond can be highly polished to its adamantine luster due to its extremely high hardness由于硬度极大,钻石能够高度抛光体现金刚光泽
The common gem materials tend to be less ductile and weaker一般的宝石材料不易延展,强度较差