carbon isotopic的用法和樣例：
例句
- A more promising technique for early detection focuses on changes in carbon isotopes in carbon dioxide.
有一種較被看好的預先偵測技術，是以二氧化碳中碳同位素的變化做為分析重點。 - The cracking gas from oil is very different from the cracking gas from kerogen in components and carbon isotopes.
原油二次裂解生成的天然氣與乾酪根初次裂解生成的天然氣在組分特徵和碳同位素特徵上存在明顯的差異。
