天气预报 > 其他 > 怎么辨别钻石的真假
怎么辨别钻石的真假
更新时间: 2020-11-19 00:00:00  

观察钻石光泽和色彩。钻石呈金刚光泽无擦痕,从冠部观察只有蓝色和橙色。

观察钻石特性的表象。成品台向下倒置于文字或倾斜于视线,自亭部看不清文字和漏出的光线。

液滴试验。可用油笔在钻石表面写字,真钻会在钻石上留下清晰的线。

关键词: 怎么 辨别 钻石 真假

怎么辨别钻石的真假相关经验

天气预报

最新推荐

页面:/news/view-2594224/ | 耗时:0.9454 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=2594224 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2594224 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2594224 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1062692,1087813,1125660,1091735,1046706,1064613,1087884,1048968,1086582,1044845,1061044,1073066,1063263,1066292,1078677,1084197,1080432,1078424,1049046,1081065,1077818,1072751,1077102,1070254,1087523,1091197,1065873,1086434,1367489,1091097) ORDER BY field (ArticleID,1062692,1087813,1125660,1091735,1046706,1064613,1087884,1048968,1086582,1044845,1061044,1073066,1063263,1066292,1078677,1084197,1080432,1078424,1049046,1081065,1077818,1072751,1077102,1070254,1087523,1091197,1065873,1086434,1367489,1091097)