anthracology

常见例句

• Anthracology Character and Process Property of Non- Caking Coal and Long Flame Coal in Northeast Region
  西北地区不粘煤、长焰煤煤岩特征及某些工艺性质
• Keywords non-caking coal;long flame coal;anthracology character;stage of metamorphism;northeast region;
  关键词不粘煤;长焰煤;煤岩特征;变质阶段;西北地区;
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