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dengyaping

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2Â¥2008-11-07 12:15:56
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When there is no distortion in the structure or no change in orientation throughout a crystal, we refer to the structure as a single crystal. A solid consisting of many single crystals with different orientations is called a polycrystalline aggregate.

[ Last edited by ren10607051 on 2008-11-7 at 16:46 ]
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4Â¥2008-11-09 11:32:32
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