22-year-old undergraduate Na Re was crowned Miss Korea 2008 Wednesday out of 51 contestants. She will represent her country at the Miss Universe 2009 Beauty Pageant.
6日下午举行的2008韩国小姐选美大赛上，22岁的大学生罗莉从51名参赛佳丽中脱颖而出，摘得桂冠，将代表韩国参加环球小姐大赛。
The good effect has been gained on the hypereutectic Al Si alloys treated with some double refining and modifying agents such as P, S, RE, Sr, Na, C, etc.
采用磷、硫、稀土、锶、钠、碳等进行双重细化变质处理过共晶铝硅合金已取得了良好的效果。
The modifying elements used in hypoeutectic Al Si alloys, besides Na, there are also Sr, Te, Ba, Sb, K, RE, B, S, etc.
亚共晶铝硅合金的变质元素除钠以外，还有锶、碲、钡、锑、钾、稀土、硼、硫等。其中，应用较多的是含钠和锶的变质剂。
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