ruby scale 中文意思是什麼
ruby scale
解釋
紅蠟蚧-
Wearing while it s true that gemstones such as ruby and sapphire are second only to diamond on the hardness scale, it is not a measurement of their indestructibility
鉆石的物理特性較穩定,可用沸水清洗,但一些寶石如綠寶石紫水晶均非常脆弱,易受溫度劇變的影響,應盡量避免使用沸水。
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