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碳
一种非金属元素,以三种晶状体形式存在:石墨、金刚石和巴克敏斯特富勒烯:在二氧化碳、煤、油和有机化合物中存在。
tàn
environ.
karbono
碳:
22 phrases
in 1 subject
Environment
22
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