Humanity's main fuel for eons was wood, which has a carbon-to-hydrogen ratio of 10 to 1 when burned; by comparison, that ratio is 2 to 1 for coal and 1 to 2 for oil.
千万年以来，人类的主要燃料是木头，燃烧木头的过程中，碳和氢的比率是10比1。相比较而言，煤在燃烧过程中这个比率是2比1，而石油的比率则是1比2。
The key to the surprising discovery is tequila's ratio of hydrogen, oxygen, and carbon, which lies within the "diamond growth region."
这一惊人发现的关键是龙舌兰中碳氢氧的比例，其恰好符合“钻石的生长域”。
The carbon-nitrogen mass ratio (mC/mN) has a significant influence on fermentative hydrogen production capacity of strain RF-9, cell growth and fermentative H2-producing ability would be impro.
利用间歇实验对不同碳源、氮源及碳氮质量比值对产氢细菌RF-9的发酵产氢行为影响进行了探讨。
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