Submitted on: 09 January 2008.
Revised on: 11 February 2008.
Accepted on: 28 February 2008.
___________________Coatings---MDPI
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Submitted on: 19 February 2006.
Revised on: 19 April 2006.
Accepted on: 09 June 2006.
___________________Coatings---MDPI
http://reply.papertrans.cn/1/59/5809/5809-34.png
http://reply.papertrans.cn/1/59/5809/5809-35.png
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