EFFECT OF COAL PITCH AND MIXING RATIO OF COKE GRAIN ON PROPERTIES OF GRANULAR COKE REINFORCED PITCH- BASED CARBON COMPOSITES是什么意思_EFFECT OF COAL PITCH AND MIXING RATIO OF COKE GRAIN ON PROPERTIES OF GRANULAR COKE REINFORCED PITCH- BASED CARBON COMPOSITES在线翻译_英语_读音_用法_例句