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        ʯӢɰV
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              ʯӢɰVϳҎ0.5-1.0mm 0.6-1.2mm 0.8-1.6mm 1.0-2.0mm 2.0-4.0mm 4.0-8.0mm 8.0-16mm 16-32mm
        ʯӢɰVϵļgҪ
        1ʯӢɰVϵʺĥp֮Ͳ1.5%(ٷʰ|Ӌͬ)
        2ʯӢɰVϵܶȲС2.55g/cm3ʹЌܶҪ󶼳
        3ʯӢɰVϑҊĸЙCs|VϵˮҺж|3%ܶС2g/cm3p|ĺ0.05%
        4ʯӢɰVϵƟp0.7%
        5ʯӢɰVϵ}ʲ3.5%
        ͨʯӢɰVϵ
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        ͨʯӢɰVϳҎ0.5-1.2mm 1-2mm 2-4mm 4-8mm 8-16mm 16-32mm
        ͨʯӢɰVϰb棺pӻΌӾbÿ50
               ֮Դ˾a4-6Ŀ8-13Ŀ10-20Ŀ20-40Ŀ40-70Ŀ50-100Ŀ70-140Ŀ100-200ĿȸNҎʯӢɰV߀ɸ͑wҪMӹ®a_2000aƷϵ£≦ɰ{ʯӢɰʯӢɰTʯӢɰˮ̎ʯӢɰPʯӢɰ;ʯӢɰʯӢɰʯӢɰT䓏ĤüʯӢɰwbʯӢɰߜʯӢɰw^ʯӢɰhƺʯӢɰaƷ|ϸʯӢɰ;Ę˜
        ʯӢɰVܷ
        Ŀ
        SiO2
        98.6%
        ĥp
        0.03%
        0.05%
        ϶
        43%
        ĪӲ
        7.50%
        }
        0.02%
        ܶ
        2.66g/cm3
        1.80g/cm3
        >98%
        ϵ
        1.60k80
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