如果钻石能发出比较强的磷光，就象有的夜光手表一样，这种钻石就是我国古代经常说的夜明珠。
If diamonds can send a stronger phosphorescence, like some luminous watches, diamonds are my ancient often said that the legendary luminous pearl.
如果钻石能发出比较强的磷光，就象有的夜光手表一样，这种钻石就是我国古代经常说的夜明珠。
If diamonds can send a stronger phosphorescence, like some luminous watches, diamonds are my ancient often said that the legendary luminous pearl.
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