The carbon 14 atoms oxidise to carbon dioxide which gets blown about and mixed up with lower atmosphere.

碳14原子氧化生成二氧化碳,向四周散去并与低空的大气混合.

《简明英汉词典》

Thus carbon 14 gradually loses neutrons in the nucleus and becomes the stable form, carbon 12.

因此C14逐渐丢失细胞核的中子并向稳定形式C12转变.

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