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ʯӢɰܷ
2018-12-01 18:42:33      
Ŀ
SiO2 98.6%
ĥ 0.03%
0.05%
϶ 43%
ĪӲ 7.50%
0.02%
ܶ 2.66g/cm3
1.80g/cm3
>98%
ϵ 1.60k80
 ʯӢɰܷ
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