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°®ÓëÓêÏÂ: ½ð±Ò+1 2013-08-03 06:55:45
xfgzju(phu_grassman´ú·¢): ½ð±Ò+5, ·­ÒëEPI+1, thanks 2013-12-03 08:21:38
These materials have been proven to work very well for some of the existing problems,

ºóÃæ°ë¾äÍêȫûÓÐÀí½âÄãµÄÒâ˼£¬limestone preservation is still a challenge.ÊÇ˵ʯ»ÒÑҵı£´æÈÔÈ»ÊǸöÌôÕ½¡­¡­ÄãÊÇҪ˵ÄÇЩ²ÄÁϵÄʹÓöÔÓÚʯ»ÒÑÒÊǸöÌôÕ½»¹ÊÇʯ»ÒÑÒµÄʹÓöÔÓÚ½â¾öÎÊÌâÊǸöÌôÕ½£¿
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mac194

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phu_grassman: ·­ÒëEPI+1, good suggestion. 2013-12-03 08:22:06
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  While limestone preservation remains challenging,all other materials have proven effective against existing problems.

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