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古羊齿目
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古羊齿目
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古羊齿目
前裸子植物的一目。晚泥盆世森林中真正的木本树蕨,高达10~30米,直径1.6米左右。北半球常见。
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carbon dioxide release
carbon dioxide remote sensing
carbon dioxide sequestration
carbon dioxide solid adsorbent
carbon dioxidesonde
carbon dioxide storage
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carbon dioxide transportation
carbon dioxide utilization
carbon disulfide
carbon disulfide poisoning
carbon dwarf star
carbon electrode
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carbon emissions per unit of GDP
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