原料：指构成产品实体的基本材料，包括坯料、釉料。
Material: means an entity constituted the basic material products including billets, glaze.
在综合分析BIF尾矿基本特性的基础上，以BIF尾矿为主要原料，选择不同的粘结剂制备轻质墙体材料。
Based on the comprehensive analysis of their basic properties, BIF tailings were used to make light wall materials with different binders.
以煅后石油焦和煤沥青为基本原料，采用热压工艺制备了一系列石墨材料。
Bulk graphite was prepared from starting materials of calcined coke and coal tar pitch by the hot pressing process.
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