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- architecturallargequartzclockmovementtechnologyofmanufacturingsolarenergyquartzclockThequartzclockkeepsverygoodtime.Thereisagoldquartzclocknearthewoodshutter.TheclockisnowcontrolledbyahighgradequartzclockinthemainentranceoftheObservatory.Generalprinc...
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- 1、quartzglasspyrheliometer2、Productsintroduction】Quartzglass,UVQuartzglasspiece,Quartzglasstube,Quartzapparatus,Quartzheatingapparatus,Quartzglassprocess,Opaquequartzglass,Opticsquartzglass,Sapphire,Quartzproducts,Quartzceramics,Quartzcrucible,Ove...
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