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                      ʯV
                      lrg20-09-04 g[

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                           ʯVϾxӽQ߻͟˱VxӽQʹ߻Ҳښwĸˮ̎ȷʯ߀СIBrֵ5%ķʯʹLӿwraʸڷʯVϵĶԹ}|СдһĿ՚ڷڼӟrС׃ȵĿ՚ݳ˚⻯˵Сݺ߅γ
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                           ʯVڹIrIIxӽQx߻ˮϲ
                            1ʯWIʯ͟ƵĴ߻ѻ仯ѻʯ͵ĻW绯Һx̓愩Ӳˮܛˮ՚Nȣ
                            2pИI켈ϳz֬Ϳϳ|ɫ 
                            3ڇggռg_lԴӹIȷx͸
                            4ڽĹIˮˮӲԻԓ˹pp|ߏȰĺʹu
                            5rI𱣷ˮֹxIϣiuӄͳ􄩵ɴMڳLСuɻ
                            6ڭhoÁ̎UUˮďUˮUҺÓսxÓUˮзȾ
                            7tWϷʯѪҺеĜyʯ߀_lɞ鱣Ʒڿ˥ȥwȷe۵ؽ
                            8aзʯɰǵľ
                            9ڹ͉ģӚKԭ
                            10ڻWsӟግ򞮔гÁֹʯĽYдСݵYʹҺƽvС؟Ƭ
                      ʯVϮaƷָˣ
                      Ŀ
                      1.92 g/cm3
                      SiO2
                      68-70
                      1.28g/cm3
                      ˮ
                      1.8%
                      1.0%
                      AL2O3
                      13-14
                      ϶
                      48%
                      Fe2O3
                      1-1.8
                      CaO
                      1.8-2.2
                      һƪɽrV һƪʯV
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