For many materials the process of turning them back into useful raw materials is straightforward: metals are shredded into pieces, paper is reduced to pulp and glass is crushed into cullet.
对许多材料而言，将它们转变为有用的原始材料的过程是非常简单的：金属物被压碎成碎片，纸被融合为纸浆而玻璃制品则被碾成玻璃碎末。
Devitrified foam glass was prepared taking cullet as major raw material using V2O5 as nuclear agent and adding other auxiliary materials.
以碎玻璃为主要原料，用V2O5作成核剂，再加入其它辅助原料制备了微晶泡沫玻璃。
This topic is about the production of foam glass using fly ash and glass cullet as raw materials.
本课题进行了以粉煤灰、碎玻璃为原料生产泡沫玻璃。
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