
 完美人 | 等级 圣骑士 财富 1 积分 382 经验 1142 文章 394 注册 07-05-03 17:03
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发表 2007-05-07 16:15:47 人气:66 
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[求助]请问这是碧玺或刚玉? (ie,1262,2007-05-07 00:32:39) | Tungsten?金属钨和钨的化合物硬度... (Tuilindo,81,2007-05-07 13:03:44) | 唔……右边的看起来比较像合成刚玉,因为太... (红莲,71,2007-05-07 15:05:57) | 好 (完美人,66,2007-05-07 16:15:47) | 谢谢二位详细解答,由于对硬度概念模糊,常... (ie,91,2007-05-07 22:49:21) | 朝鲜语,看不懂。碳化钨的硬度是8.5... (Tuilindo,77,2007-05-07 23:16:57) | 这个………………前轱辘比后轱辘长四米... (红莲,78,2007-05-08 13:03:47) | [QUOTE][b]下面引用由[u]红莲... (Tuilindo,67,2007-05-08 13:13:53) | [QUOTE][b]下面引用由[u]Tu... (红莲,56,2007-05-08 14:37:19) | 是碧玺 (玉田翡翠,59,2007-05-08 16:29:14) | [QUOTE][b]下面引用由[u]红莲... (Tuilindo,60,2007-05-08 16:31:43) | [QUOTE][b]下面引用由[u]红莲... (ie,83,2007-05-08 22:50:25) |
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