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jic8417(½ð±Ò+1):лл²ÎÓë 2010-11-12 17:53:56
canglong8210(½ð±Ò+10): 2010-11-12 18:47:10
Linear coefficient, ¦Á, at 20 ¡ãC =23*(10^−6/¡ãC       
Volumetric coefficient, ¦Â, at 20 ¡ãC =69*(10^−6/¡ãC)       
from wiki Thermal expansion
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